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JEE Main 2023 (29 Jan, Shift 1) · Electrical Power & Heating Effect

Electrical Power & Heating Effect question from JEE Main 2023 (29 Jan, Shift 1)

Q20JEE Main 2023 · 29 JAN · SHIFT 1Easy

Electrical Power & Heating Effect

Ratio of thermal energy released in two resistors R and 3R connected in parallel in an electric circuit is:

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Answer: (d)

In parallel, same $V$ : $H = \frac{V^2 t}{R} \propto \frac{1}{R}$ .
$\frac{H_R}{H_{3R}} = \frac{3R}{R} = 3 : 1$ .
So the answer is (d) 3 : 1.

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