Question

A given conductor carrying a current of 1 A produce an amount of heat equal to 2000 joule. If the current through the conductor is double, the amount of heat produce will be

Answer 1

Answer:

H=I^2Rt =2000J

if current is doubled

H'=(2I)^2Rt=4l^2Rt

=4×2000=8000J=8kJ