What is the mutual inductance for two 400-mH coils L₁ and L₂ that have a coefficient of coupling of 0.3? A) 80 mH B) 12 mH C) 120 mH D) 1.2 H

Name: What is the mutual inductance for two 400-mH coils L 1 and L 2 that have a coefficient of coupling of 0.3? A) 80 mH B) 12 mH C) 120 mH D) 1.2 H
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Quizplus · Accepted Answer

The mutual inductance M is given by M = k * sqrt(L1 * L2), where k is the coefficient of coupling. Here, M = 0.3 * sqrt(0.4 * 0.4) = 0.3 * 0.4 = 0.12 H or 120 mH.

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