Question

If a current $i$ flows steadily through a resistor $R$ for a time $t$. Then total heat energy supplied to the resistor is given by:

• A. $\frac{R}{it}$
• B. $i{R}^2{t}^2$
• C. $i^{2}Rt$
• D. $V^{2}it$

Answer 1

Answer: (C)

$i^{2}Rt$

According to Joule's law of heating, total heat energy supplied to the resistor, $H=i^{2}Rt$