Q 12-03-123JEE MainJEE Main 2023 (31 Jan, Shift 2)Easy
$H$ amount of thermal energy is developed by a resistor in $10\ \text{s}$ when a current of $4\ \text{A}$ is passed through it. If the current is increased to $16\ \text{A}$, the thermal energy developed by the resistor in $10\ \text{s}$ will be
Answer: (B) $16H$
$H=I^2Rt\propto I^2$. The current is $4$ times larger, so the heat is $16H$.
Solution by Sreeraj P, M.Sc Physics