Introduction to Thermal Motion:
The thermal motion is nothing but a consequence of the kinetic theory of matter and it is applied to the matter which is made up of a large number of small particles i.e. atoms and molecules which are moving randomly constantly. These randomly moving particles collide with each other and with the walls of the container constantly. These collisions produce a heat in the system or matter which results as the thermal motion of particles.
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Example of Thermal Motion:
The Brownian motion is a good example of the thermal motion. A gas has the particles which are very small and we are unable to see them and the gas also contains dust particles and pollen grains. The random motion of these pollen grains or dust particles which is seen using a microscope is known as Brownian motion and this is directly results from the collisions between the particle and air molecules. Fig.1 shows the random motion of particles in any gas or says air which is nothing but the thermal motion.
For finding the displacement of a particle which undergoes the Brownian motion we have to solve the diffusion equation by applying appropriate boundary conditions and hence get the rms of the particle. Thus we say that the displacement varies as square root of the time not linearly.
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Conclusion for thermal motion:
The thermal motion is mostly related with the gases because they have largely displaced particles and if the gases are kept in a container then they obey the conditions of the thermal motion. In solids and liquids the particles are not at sufficient distance such that they freely move in the container if they were kept in it and if one really wants to do it then a large amount of heat is needed for it.
In gases the inter molecular distance between the particles is large enough such that the particles move randomly and hence collide with each other and with the walls of the container vessel which results the thermal motion. In gases the most predominant factor is the movement of the molecules which is necessary for the existence of the thermal motion in any matter.
Wednesday, April 24, 2013
Rutherford's Gold Foil Experiment
Rutherford Atomic Theory
Rutherford Atomic Theory Suggests that the atom has a positively charged body at it center known as the nucleus. The positive charge of the protons present inside the nucleus are balanced by the electrons that were distributed around the nucleus, this nucleus consists of protons and neutrons of that atom. The nucleus constitutes most of the mass of the atom. There are electrons revolving the nucleus and these electrons are negatively charged.
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Ernest Rutherford Atom went ahead and exemplified the cause for the phenomenon of electrons not falling back in to the nucleus although there is a mutual electrostatic force of attraction existing between the electrons and the protons inside the nucleus.
He stated that due to the revolution of electrons at such high velocity, the centrifugal forces balances the electrostatic forces of attraction resulting in centripetal forces acting inwards which helps in the balancing act and so electrons do not fall in to the nucleus.
Ernest Rutherford Gold Foil Experiment
Rutherford Gold Foil experiment gave this theory on atomic model. The mass of atom was contained mostly of the nucleus. . The gold foil experiment conducted by Rutherford helped him to come to this conclusion. In this experiment a beam of alpha particles emitted from a radioactive source in the form of a thin bean , was directed onto a sheet of very thin gold foil.
A circular sheet of zinc sulfide was made to surround this gold foil which was used as a detector: The ZnS sheet would light up when hit with alpha particles. .
To Prevent scattering of molecules the whole experiment was setup in an evacuated chamber to prevent scattering by air molecules.
It was observed that majority of the particles happen to pass straight through the foil. Rutherford concluded that since the majority particles were not deflected they were empty and were made of open space.
A very small percentage of particles were deflected by much larger angles say about 90 degrees.
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Rutherford Gold Foil Experiment Summary
Alpha particles which were which are big in size were deflected by large angles or bounced backwards because they must have approached some positively charged region responsible for the deflection. This positively charged region is now called the nucleus.
This was due to massive center with a positive charge, the nucleus. This experiment gave the basis for the Rutherford atomic model. The results showed that atoms are mostly empty space but with a very dense center which we now call the nucleus.
Rutherford Atomic Theory Suggests that the atom has a positively charged body at it center known as the nucleus. The positive charge of the protons present inside the nucleus are balanced by the electrons that were distributed around the nucleus, this nucleus consists of protons and neutrons of that atom. The nucleus constitutes most of the mass of the atom. There are electrons revolving the nucleus and these electrons are negatively charged.
Having problem with electric field equation keep reading my upcoming posts, i will try to help you.
Ernest Rutherford Atom went ahead and exemplified the cause for the phenomenon of electrons not falling back in to the nucleus although there is a mutual electrostatic force of attraction existing between the electrons and the protons inside the nucleus.
He stated that due to the revolution of electrons at such high velocity, the centrifugal forces balances the electrostatic forces of attraction resulting in centripetal forces acting inwards which helps in the balancing act and so electrons do not fall in to the nucleus.
Ernest Rutherford Gold Foil Experiment
Rutherford Gold Foil experiment gave this theory on atomic model. The mass of atom was contained mostly of the nucleus. . The gold foil experiment conducted by Rutherford helped him to come to this conclusion. In this experiment a beam of alpha particles emitted from a radioactive source in the form of a thin bean , was directed onto a sheet of very thin gold foil.
A circular sheet of zinc sulfide was made to surround this gold foil which was used as a detector: The ZnS sheet would light up when hit with alpha particles. .
To Prevent scattering of molecules the whole experiment was setup in an evacuated chamber to prevent scattering by air molecules.
It was observed that majority of the particles happen to pass straight through the foil. Rutherford concluded that since the majority particles were not deflected they were empty and were made of open space.
A very small percentage of particles were deflected by much larger angles say about 90 degrees.
Please express your views of this topic Average Atomic Mass Definition by commenting on blog.
Rutherford Gold Foil Experiment Summary
Alpha particles which were which are big in size were deflected by large angles or bounced backwards because they must have approached some positively charged region responsible for the deflection. This positively charged region is now called the nucleus.
This was due to massive center with a positive charge, the nucleus. This experiment gave the basis for the Rutherford atomic model. The results showed that atoms are mostly empty space but with a very dense center which we now call the nucleus.
Wavelength
Wave length is the distance between two peaks in a wave. UV, or ultraviolet, light is an form of electromagnetic radiation that has a shorter wavelength than the light humans can see. Comparing the or UV with that of visible light UV carries more energy.
It also sometimes break bonds between atoms and molecules thereby altering the chemistry of materials that are exposed to it. It also gives rise to fluorescence in some materials.
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Visible light produces he colors red (R), orange (O), yellow (Y), green (G), blue (B), and violet (V) colors. Ultraviolet is beyond this visible spectrum. Ultraviolet wavelength has shorter wave length than visible light , but more energy than violet light. The wave length of Ultraviolet ranges between 10nm(nanometer) to 400 nm. Ultraviolet spectrum is divided into near ultraviolet, the far ultraviolet and the extreme ultraviolet.
Scientists have tried differentiating the ultra-violet part of the spectrum into 03 specific regions: the near UV, the far UV, and the extreme UV.
These 03 regions are then further distinguished by the level of energy of the ultraviolet radiation, and by the "wave length" of the ultraviolet light, which is related to energy
Wavelength energy: The amount of energy is inversely related to the wave length of the light: the shorter the wave length, the greater the energy of each photon of the light. The relation between energy to wavelength is
E = hc/ λ or λ = hc/E
here E denotes Energy, h denotes plancks constant
h denotes Planck constant (6.62606896×10−34 Js)
c denotes speed of light
λ denotes wave length
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The relation between wavelength and energy was invented by Max Planck who identified a co-efficient of proportionality that related a photon's energy to its frequency. This co-efficient is known as the Planck constant and allows photon energy found by using the following relation.
The speed of a wave can be written as speed = wave length/period. Here the period of the wave is the time the particles to make one complete vibration cycle. We know that speed = distance/time. Using this we can write the speed of wave as
Speed = wave length/period
Period = 1/ λ. So v = f λ
The above equation is known as the frequency wave length formula It states the mathematical relationship between the speed (v) of a wave and its wave length (λ) and frequency (f). Using the symbols v, , and f, the equation can be rewritten as
V = f λ
Frequency = speed of light / wave length ie f = v/ λ
It also sometimes break bonds between atoms and molecules thereby altering the chemistry of materials that are exposed to it. It also gives rise to fluorescence in some materials.
Please express your views of this topic What is the Electromagnetic Spectrum by commenting on blog.
Visible light produces he colors red (R), orange (O), yellow (Y), green (G), blue (B), and violet (V) colors. Ultraviolet is beyond this visible spectrum. Ultraviolet wavelength has shorter wave length than visible light , but more energy than violet light. The wave length of Ultraviolet ranges between 10nm(nanometer) to 400 nm. Ultraviolet spectrum is divided into near ultraviolet, the far ultraviolet and the extreme ultraviolet.
Scientists have tried differentiating the ultra-violet part of the spectrum into 03 specific regions: the near UV, the far UV, and the extreme UV.
These 03 regions are then further distinguished by the level of energy of the ultraviolet radiation, and by the "wave length" of the ultraviolet light, which is related to energy
Wavelength energy: The amount of energy is inversely related to the wave length of the light: the shorter the wave length, the greater the energy of each photon of the light. The relation between energy to wavelength is
E = hc/ λ or λ = hc/E
here E denotes Energy, h denotes plancks constant
h denotes Planck constant (6.62606896×10−34 Js)
c denotes speed of light
λ denotes wave length
Is this topic wavelength equation hard for you? Watch out for my coming posts.
The relation between wavelength and energy was invented by Max Planck who identified a co-efficient of proportionality that related a photon's energy to its frequency. This co-efficient is known as the Planck constant and allows photon energy found by using the following relation.
The speed of a wave can be written as speed = wave length/period. Here the period of the wave is the time the particles to make one complete vibration cycle. We know that speed = distance/time. Using this we can write the speed of wave as
Speed = wave length/period
Period = 1/ λ. So v = f λ
The above equation is known as the frequency wave length formula It states the mathematical relationship between the speed (v) of a wave and its wave length (λ) and frequency (f). Using the symbols v, , and f, the equation can be rewritten as
V = f λ
Frequency = speed of light / wave length ie f = v/ λ
Thursday, April 18, 2013
Who Invented the Television
Introduction to television invention:
Television is one of the prime requisites of the modern day world which will forever remain indebted to the man who invented the television. It enables the transmission of live as well as previous information , soaps, films, news, games etc from any part of the planet. However, in the days before television, the aspect of News, sensational events etc had to wait for the morning newspaper editions. The invention of the television is not only important in the spheres of human inventions but also marked a new era in journalism.-- TV journalism. Commercially television became available for the homes by 1930. The word "television" has its roots in the Greek and Latin word meaning "far sight". The answer to the question of who invented the television, speaks of efforts of several researchers who contributed to a certain extent toward the invention .
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JL Baird invented the television
There has been some debate over who invented the television, yet in most history and general knowledge books John Logie Baird is credited with the invention of television. He was a Scottish engineer and inventor, who invented the television in the year 1925 after a research of many years. However his first public demonstration of the workings of the television took place in the year 1926.
This achievement provided him with enough money to hire a team of engineers. At that time the head of the BBC, Sir John Reith, did not believe in the usefulness of television and called it "waste of time,".
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Televisors in the invented television
However, with the government’s support on its side, Baird's company managed to procure a license for regular broadcasting, which led to the selling of assembled receivers, known as "televisors."
John Logie Baird, famously known as the man who invented television, was born in Helensburgh, Dunbartonshire on 13 August 1888 and received his education at Larchfield Academy Helensburgh. However he could not graduate because of the interruptions created by the turbulent World War l. Baird died on 14th june 1946 in Bexhill-on-Sea, Sussex.
Television is one of the prime requisites of the modern day world which will forever remain indebted to the man who invented the television. It enables the transmission of live as well as previous information , soaps, films, news, games etc from any part of the planet. However, in the days before television, the aspect of News, sensational events etc had to wait for the morning newspaper editions. The invention of the television is not only important in the spheres of human inventions but also marked a new era in journalism.-- TV journalism. Commercially television became available for the homes by 1930. The word "television" has its roots in the Greek and Latin word meaning "far sight". The answer to the question of who invented the television, speaks of efforts of several researchers who contributed to a certain extent toward the invention .
I like to share this Average Atomic Mass Definition with you all through my article.
JL Baird invented the television
There has been some debate over who invented the television, yet in most history and general knowledge books John Logie Baird is credited with the invention of television. He was a Scottish engineer and inventor, who invented the television in the year 1925 after a research of many years. However his first public demonstration of the workings of the television took place in the year 1926.
This achievement provided him with enough money to hire a team of engineers. At that time the head of the BBC, Sir John Reith, did not believe in the usefulness of television and called it "waste of time,".
Is this topic formula for wavelength hard for you? Watch out for my coming posts.
Televisors in the invented television
However, with the government’s support on its side, Baird's company managed to procure a license for regular broadcasting, which led to the selling of assembled receivers, known as "televisors."
John Logie Baird, famously known as the man who invented television, was born in Helensburgh, Dunbartonshire on 13 August 1888 and received his education at Larchfield Academy Helensburgh. However he could not graduate because of the interruptions created by the turbulent World War l. Baird died on 14th june 1946 in Bexhill-on-Sea, Sussex.
Wednesday, April 17, 2013
Magnetic Induction
Magnetic Induction
Magnetic (M) induction is the process that uses magnetic field to produce temporary or permanent magnetism in any substance.
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Magnetism Definition
If an object can attract other object, it is said to be magnetic. This property is known as magnetism (MG). Here both objects should be magnetic. All the magnetic substances have some characteristic features that differentiate them from the other non-magnetic substance.
Let’s discuss some of the magnetic properties of these substances. Each magnet has two poles namely north and south poles. Area around a magnet, in which its magnetism is applied, is known as magnetic field.
Magnetic Energy Generator
M energy generators (MEG) are devices that generate magnetic energy. These are environmental friendly, cost effective and low maintenance machines that produce M energy continuously. On the contrary to other natural energy devices such as solar system and wind mills, these ME generators produce energy continuously irrespective of changes in weather.
Being renewable energy source, ME generators do not aid to global warming and other kinds of pollutions. This energy is inflammable and hence is safe and user friendly. MEGs are best alternative to non-renewable energy sources that are exhausting at a fast rate due to increasing demand for power supply.
MEG includes a large magnet as a source of energy. For the purpose, a belt is connected to the electric dynamo core. The electric dynamo is made to spin by turning force and hence the electricity is produced.
Magnetic Flux Density
Each magnet emits M lines from its north pole. These M lines together represent the magnetic flux of the magnet. Magnetic flux density is the magnitude of M flux (MF) per unit area. MF density is measured for the unit area present perpendicular to flux direction.
MF is denoted by Greek symbol “phi” (Φ). MFD is expressed by using following formula:
B= Φ/A
Here
B= Magnetic Flux Density
Φ= Magnetic flux
A=area
If the MF is measured in Webers (Wb) and area is measured in meter squares (m2), then the unit of MFD will be tesla (T)
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Magnetic Induction Unit
Magnetic induction includes production of temporary or permanent magnet using magnetic field. It relies in strength of used magnetic field. As we know that conductor allows flow of electricity through them. When an electric current is passing through a conductor, a magnetic field is also produced around it.
Now change in magnitude or frequency of current will cause altered electromagnetic field around the conductor. This electromagnetic field can produce voltage in other conductor that comes in its range.
The process is magnetic induction and the device (transformers) is known as MIU.
Magnetic (M) induction is the process that uses magnetic field to produce temporary or permanent magnetism in any substance.
I like to share this Electric Dipole Moment with you all through my article.
Magnetism Definition
If an object can attract other object, it is said to be magnetic. This property is known as magnetism (MG). Here both objects should be magnetic. All the magnetic substances have some characteristic features that differentiate them from the other non-magnetic substance.
Let’s discuss some of the magnetic properties of these substances. Each magnet has two poles namely north and south poles. Area around a magnet, in which its magnetism is applied, is known as magnetic field.
Magnetic Energy Generator
M energy generators (MEG) are devices that generate magnetic energy. These are environmental friendly, cost effective and low maintenance machines that produce M energy continuously. On the contrary to other natural energy devices such as solar system and wind mills, these ME generators produce energy continuously irrespective of changes in weather.
Being renewable energy source, ME generators do not aid to global warming and other kinds of pollutions. This energy is inflammable and hence is safe and user friendly. MEGs are best alternative to non-renewable energy sources that are exhausting at a fast rate due to increasing demand for power supply.
MEG includes a large magnet as a source of energy. For the purpose, a belt is connected to the electric dynamo core. The electric dynamo is made to spin by turning force and hence the electricity is produced.
Magnetic Flux Density
Each magnet emits M lines from its north pole. These M lines together represent the magnetic flux of the magnet. Magnetic flux density is the magnitude of M flux (MF) per unit area. MF density is measured for the unit area present perpendicular to flux direction.
MF is denoted by Greek symbol “phi” (Φ). MFD is expressed by using following formula:
B= Φ/A
Here
B= Magnetic Flux Density
Φ= Magnetic flux
A=area
If the MF is measured in Webers (Wb) and area is measured in meter squares (m2), then the unit of MFD will be tesla (T)
Is this topic Capacitance Equation hard for you? Watch out for my coming posts.
Magnetic Induction Unit
Magnetic induction includes production of temporary or permanent magnet using magnetic field. It relies in strength of used magnetic field. As we know that conductor allows flow of electricity through them. When an electric current is passing through a conductor, a magnetic field is also produced around it.
Now change in magnitude or frequency of current will cause altered electromagnetic field around the conductor. This electromagnetic field can produce voltage in other conductor that comes in its range.
The process is magnetic induction and the device (transformers) is known as MIU.
Kinetic Theory
Kinetic Molecular Theory
Kinetic molecular theory was proposed by Rudolf Clausius to describe the nature of gas molecules. According to the theory, gases are composed of large number of molecules. Here Nobel gases are supposed to be composed of atoms, rather than molecules. These molecules or atoms are moving continuously in random manner. Please express your views of this topic Equation for Kinetic Energy by commenting on blog.
Since two molecules or atoms in gases are spaced apart from each other, they move in a straight line until they collide with other molecules or atoms or with wall. The theory also considers the collisions to be binary which means that only two molecules or atoms are involved in the collision. According to the theory, molecular volume of gas is negligible as compared to total gas volume in a container.
However, this assumption fails when the number of molecules in a gas increases up-to 1 mol/lit. Due to increased number of molecules, the molecular volume of gas cannot longer be considered as negligible as compared to the container volume. The theory also assumes that attractive forces between molecules or atoms are negligible.
Kinetic Theory
The kinetic theory is also known as kinetic molecular theory that explains almost all the basic law’s of matter namely Charles’ law, Boyle’s law etc.
Kinetic Theory of Matter
The kinetic theory of matter explains the heat transfer of heat flow and also explains relation between pressure, temperature and volume of gases.
Kinetic Molecular Theory of Gases
According to kinetic molecular theory, gases have large number of molecules that are moving continuously in a straight line till they collide with other molecules or with container’s wall. The theory assumes the molecular volume and attractive forces between gas molecules negligible. Hence under constant gas temperature, the average kinetic energy of gas molecules also remains constant.
This is due to the fact that the collisions are elastic that can cause energy transfer but not energy loss. The average kinetic energy of gas molecules depends on temperature of gas. Hence at a particular temperature, average kinetic energy of molecules of all gases will be same irrespective of their shape, size or weight.
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Kinetic Theory of Gases
The kinetic theory of gases explains the nature of gases. According to the theory, all gases are made up of molecules that are in continuous and random motion. Owing to large distance between two molecules of a gas, these molecules move in straight line till any collision. All the collisions are elastic and hence do not cause any energy loss.
There is no attraction or repulsion force acting between gas molecules. At lower molecular concentration, the molecular volume of gas can be considered negligible as compared to the total container’s gas volume.
Kinetic molecular theory was proposed by Rudolf Clausius to describe the nature of gas molecules. According to the theory, gases are composed of large number of molecules. Here Nobel gases are supposed to be composed of atoms, rather than molecules. These molecules or atoms are moving continuously in random manner. Please express your views of this topic Equation for Kinetic Energy by commenting on blog.
Since two molecules or atoms in gases are spaced apart from each other, they move in a straight line until they collide with other molecules or atoms or with wall. The theory also considers the collisions to be binary which means that only two molecules or atoms are involved in the collision. According to the theory, molecular volume of gas is negligible as compared to total gas volume in a container.
However, this assumption fails when the number of molecules in a gas increases up-to 1 mol/lit. Due to increased number of molecules, the molecular volume of gas cannot longer be considered as negligible as compared to the container volume. The theory also assumes that attractive forces between molecules or atoms are negligible.
Kinetic Theory
The kinetic theory is also known as kinetic molecular theory that explains almost all the basic law’s of matter namely Charles’ law, Boyle’s law etc.
Kinetic Theory of Matter
The kinetic theory of matter explains the heat transfer of heat flow and also explains relation between pressure, temperature and volume of gases.
Kinetic Molecular Theory of Gases
According to kinetic molecular theory, gases have large number of molecules that are moving continuously in a straight line till they collide with other molecules or with container’s wall. The theory assumes the molecular volume and attractive forces between gas molecules negligible. Hence under constant gas temperature, the average kinetic energy of gas molecules also remains constant.
This is due to the fact that the collisions are elastic that can cause energy transfer but not energy loss. The average kinetic energy of gas molecules depends on temperature of gas. Hence at a particular temperature, average kinetic energy of molecules of all gases will be same irrespective of their shape, size or weight.
Is this topic Formula of Average Speed hard for you? Watch out for my coming posts.
Kinetic Theory of Gases
The kinetic theory of gases explains the nature of gases. According to the theory, all gases are made up of molecules that are in continuous and random motion. Owing to large distance between two molecules of a gas, these molecules move in straight line till any collision. All the collisions are elastic and hence do not cause any energy loss.
There is no attraction or repulsion force acting between gas molecules. At lower molecular concentration, the molecular volume of gas can be considered negligible as compared to the total container’s gas volume.
Electrical Theory
Equation for Capacitance
Capacitor can be defined as device including two electrically conductive metal plates that are arranged parallel to each other. These two plates are separated by a insulating medium. Due to this arrangement, an electrical charge is established. Here the charge is flowing from the positively charged plate to the negatively charged plate. It measures the ability of capacitor to store charge. It can be expressed as following equation:
C=Q/V
Where
C=capacitance
Q=charge on each plate
V=Voltage supplied to plates
Here since Q is measured in coulomb and V is measured in volt, the unit of capacitance is Farad.
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Measuring Capacitance
This (CP) could be measured by various methods. First one is to use CP-measuring meters namely DMM (digital multi meter) and LCR meter. Other method to measure CP relies on resistance and time. It includes measurement of time (T) taken to charge a battery of particular voltage. The resistance (R) of capacitor is measured in Ohm. Using the above mentioned values, CP can be calculated by following formula:
C=T/R
CP can also be measured by charging the capacitor with a constant current (I). Here
C=I*T
Capacitance Measurement
CP can be easily measured by using the CP-measuring meters that cover wide range. Other methods to measure CP depend on measurement of time taken to charge a battery of known voltage or on supplying a constant current to the capacitor.
Units for Capacitance
Since CP is measured by dividing charge on each plate of capacitor to the voltage supplied, its unit is farad. Here the formula is C=Q/V.
In case of following formula:
C=T/R;
If the resistance is measured in Ohm, the unit of CP will be farad. But if the resistance is measured in mega-ohm, unit of CP will be microfarads.
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Electronic Theory
Electricity is produced due to movement of electrons through conductor materials. It involves movement of electrons towards proton driven by electromotive force. This force is responsible for pushing the electrons towards the protons. Now the atom that has lost the electron becomes positively charged and it attracts electron from other atoms. Hence there is a chain reaction of gain and loss of electrons between atoms. In a conductor, electrons move towards positively charged plate and this movement is driven by potential difference between the two plates. According to the electronic theory movement of electron occurs from negative end to the positive end of electronic circuit.
Capacitor can be defined as device including two electrically conductive metal plates that are arranged parallel to each other. These two plates are separated by a insulating medium. Due to this arrangement, an electrical charge is established. Here the charge is flowing from the positively charged plate to the negatively charged plate. It measures the ability of capacitor to store charge. It can be expressed as following equation:
C=Q/V
Where
C=capacitance
Q=charge on each plate
V=Voltage supplied to plates
Here since Q is measured in coulomb and V is measured in volt, the unit of capacitance is Farad.
I like to share this Capacitance Equation with you all through my article.
Measuring Capacitance
This (CP) could be measured by various methods. First one is to use CP-measuring meters namely DMM (digital multi meter) and LCR meter. Other method to measure CP relies on resistance and time. It includes measurement of time (T) taken to charge a battery of particular voltage. The resistance (R) of capacitor is measured in Ohm. Using the above mentioned values, CP can be calculated by following formula:
C=T/R
CP can also be measured by charging the capacitor with a constant current (I). Here
C=I*T
Capacitance Measurement
CP can be easily measured by using the CP-measuring meters that cover wide range. Other methods to measure CP depend on measurement of time taken to charge a battery of known voltage or on supplying a constant current to the capacitor.
Units for Capacitance
Since CP is measured by dividing charge on each plate of capacitor to the voltage supplied, its unit is farad. Here the formula is C=Q/V.
In case of following formula:
C=T/R;
If the resistance is measured in Ohm, the unit of CP will be farad. But if the resistance is measured in mega-ohm, unit of CP will be microfarads.
Is this topic Unit of Electrical Resistance hard for you? Watch out for my coming posts.
Electronic Theory
Electricity is produced due to movement of electrons through conductor materials. It involves movement of electrons towards proton driven by electromotive force. This force is responsible for pushing the electrons towards the protons. Now the atom that has lost the electron becomes positively charged and it attracts electron from other atoms. Hence there is a chain reaction of gain and loss of electrons between atoms. In a conductor, electrons move towards positively charged plate and this movement is driven by potential difference between the two plates. According to the electronic theory movement of electron occurs from negative end to the positive end of electronic circuit.
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