The following figure represents two bulbs B₁ and B₂, resistor R and an inductor L. When the switch S is turned off, which of the following statement is true? (a) B₁ becomes off promptly but B₂ with some delay (b) B₂ becomes off promptly but B₁ with some delay (c) Both B₁ and B₂ becomes off with same delay (d) Both B₂ and B₂ becomes off promptly

Answer: (c). When S is opened, the battery is cut off, but R – B₁ and L – B₂ still form one closed loop. The inductor keeps the current flowing and it decays as e-t/τ around this loop. The same current passes through both bulbs, so both go off together after the same delay. So the answer is (c).

The following figure represents two bulbs B₁ and B₂, resistor R and… | MHT CET 2026 (11 Apr, Shift 1)

Q8MHT CET 2026 · 11 APR · SHIFT 1Medium

Combination of Inductors, LR & LC Circuits

The following figure represents two bulbs $B_1$ and $B_2$ , resistor R and an inductor L. When the switch S is turned off, which of the following statement is true?

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Answer: (c)

When $S$ is opened, the battery is cut off, but $R$ – $B_1$ and $L$ – $B_2$ still form one closed loop.
The inductor keeps the current flowing and it decays as $e^{-t/\tau}$ around this loop.
The same current passes through both bulbs, so both go off together after the same delay.
So the answer is (c).

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Combination of Inductors, LR & LC Circuits question from MHT CET 2026 (11 Apr, Shift 1)

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