Question

P = V i watt joules law og ​

Answer 1

Answer:

Joule’s law, in electricity, mathematical description of the rate at which resistance in a circuit converts electric energy into heat energy.

A quantitative form of Joule’s law is that the heat evolved per second, or the electric power loss, P, equals the current I squared times the resistance R, or P = I2R. The power P has units of watts, or joules per second, when the current is expressed in amperes and the resistance in ohms.