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NEET 2006 (AIPMT) · Mutual Inductance

Mutual Inductance question from NEET 2006 (AIPMT)

Q62NEET 2006 · AIPMTEasy

Mutual Inductance

Two coils of self inductance 2 mH and 8 mH are placed so close together that the effective flux in one coil is completely linked with the other. The mutual inductance between these coils is

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Answer: (d)

Complete flux linkage: $k = 1$ , so $M = \sqrt{L_1L_2}$
$M = \sqrt{2 \times 8} = 4\text{ mH}$
So the answer is (d) 4 mH.

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