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Answer: The mutual inductance of two coils is the magnetic flux linked with one coil per unit current in the other (neighbouring) coil, \(M = \dfrac{N_2\Phi_2}{I_1}\). Equivalently, it is the e.m.f. induced in one coil per unit rate of change of current in the other, \(M = \dfrac{|e_2|}{dI_1/dt}\). SI unit: henry (H).

Doubtly AI · 28 Oct 2026 AI-verified · Oct 2026 Report
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