Question

Heat energy dissipated across a conductor carrying current I, having resistance R for a time t, is given by:

• A. $IR$
• B. $I^{2}R$
• C. $I^2{R}^{2}t$
• D. $I^{2}Rt$

Answer 1

The correct option is D $I^{2}Rt$

Heat energy dissipated is given by $H=I^{2}Rt$,
I = Current flowing through the conductor
R = Resistance of the conductor and
t = Time for which current has flown in the conductor.