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The maximum value of mutual inductance of 2 inductively coupled coils with self inductance LA = 49 mH and LB = 81 mH is ______________ (a) 130 mH (b) 63 mH (c) 32 mH (d) 3969 mH This question was addressed to me during an internship interview. My enquiry is from Advanced Problems on Magnetically Coupled Circuits topic in portion Resonance & Magnetically Coupled Circuit of Network Theory Select the correct answer from above options network theory questions and answers, network theory questions pdf, network theory question bank, network theory gate questions and answers pdf, mcq on network theory pdf, gate network theory questions and solutions, network theory mcq Test , ies network theory questions, Network theory Questions for GATE EC Exam, Network Theory MCQ (Multiple Choice Questions)

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Correct choice is (b) 63 mH The explanation is: M ≤ K\sqrt{L_A L_B} Maximum value of (M) Or, Mmax = K\sqrt{L_A L_B} Or, Mmax = \sqrt{L_A L_B} = \sqrt{40 ×81} = 63 mH.

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