by abhishek | Aug 26, 2020 | Chemical Effects of Current
Voltaic cell is the simplest and earliest device which is capable of converting chemical energy into electrical energy. It was invented by Alexandro de Volta in 1800. Construction and Working of Voltaic CellA simple voltaic cell can be constructed in laboratory. For...
by abhishek | Aug 26, 2020 | Chemical Effects of Current
To understand electric current suppose there are two charged bodies having different potentials. Both the bodies are supported by an insulating stand. When these two charged bodies at different potential are connected by a metal wire, it is found that there is a flow...
by abhishek | Aug 26, 2020 | Evolution
Electrostatic PotentialThe electrostatic potential at any point defined as the work done in bringing a unit positive charge from infinity to that point. The S.I. unit of electrostatic potential isvolt. It is denoted by symbol V. Potential DifferenceThe potential...
by abhishek | Aug 26, 2020 | Chemical Effects of Current
Coulomb’s LawThe force between two electric charges is directly proportional to the product of the magnitude of the charges (q1 and q2) and inversely proportional to the square of the distance (r) between them. So, according to the coulomb’s law: F α or F = K Where...
by abhishek | Aug 26, 2020 | Chemical Effects of Current
There are two types of electric charges: (i) Positive charges (ii) Negative charges. To show that there are two types of electric charges, let’s do some experiments. Take two empty plastic bottles and rub them with wool. This makes them both negatively...
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