Photocell Light Control

Introduction to photocell light control:

The some amount of energy is released in many chemical reactions. Such reactions, under proper control can be used as a source of electricity. So we can say that the cell is a device which can convert one type of energy into the electrical energy. Here we discuss the photocell light control and the photocell also.

I like to share this Formula for Torque with you all through my article.

Photocell light control:


A photocell is a device which directly convert the light energy into electric energy. There are many types of the photoelectric cells differencing in construction but all are based on the photoelectric effect. There are three main types of the photoelectric cell are : photo emissive cell, photovoltaic cell and photo conductive cell.

Understanding Wavelength Formula is always challenging for me but thanks to all science help websites to help me out.

Advantages of photocell light control:


The main advantages of the photocell light control are as follows:

(i) The main application amongst all is the sound reproduction in photo telegraphy, movies and in television.

(ii) These help in determining the opacity of solid as well as liquids.

(iii) Photocells are used to measure temperature of celestial bodies.

(iv) These help in controlling  temperature of furnaces and the same in the chemical reactions.

(v) Photocells are used in the automatic doors, which are used in the auditoriums, malls, seminar halls etc.

(vi) The photocells are used to count the number of items manufactured by the particular machine in the industries.

(vii) The photocells are used in the automatic switches in the street lights and in the traffic signals. Bulbs are connected with a switch in a relay arrangement so they can be put on and off  simultaneously. The photoelectric cells control the relay.

(viii) The photocells are used in the thief detector bells.

(ix) The photocells are used to give the energy  to space crafts. The photocells are exposed to sunlight and this electric energy is then used to charge space crafts' batteries.