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MHT CET 2025 (22 Apr, Shift 2) · Pure R, L and C Circuits

Pure R, L and C Circuits question from MHT CET 2025 (22 Apr, Shift 2)

Q19MHT CET 2025 · 22 APR · SHIFT 2Easy

Pure R, L and C Circuits

A coil has inductance 2 H. The ratio of its reactance when it is connected first to an a.c. source and then to a d.c. source is

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Answer: (c)

For a.c.: $X_L = \omega L = 2\omega$ , a finite value.
For d.c.: $\omega = 0$ , so $X_L = 0$ .
Ratio $= \frac{2\omega}{0} = \infty$
So the answer is (c) $\infty$ .

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