Question

what is ohom's law and its application

Answer 1

Ohm's law has sometimes been stated as, "for a conductor in a given state, the electromotive force is proportional to the current produced." That is, that the resistance, the ratio of the applied electromotive force (or voltage) to the current, "does not vary with the current strength ."

Answer 2

A law relating the voltage difference between two points, the electric current flowing between them, and the resistance of the path of the current. Mathematically, the lawstates that V = IR, where V is the voltage difference, I is the current in amperes, and R is the resistance in ohms.