Question

Calculate the rate of exemption of the energy when a current of 1.4 ampere is passed through a wire of the resistance 200 ohm if the rate of the consumption of the energy in the given wire is 1250 watt calculate the potential difference between the ends of the wire

Answer 1

I=1.4 A R=200ohm P =I250 watt

P=VXI

P = 1.4x V

1250-.÷1.4=86.2V