JEE Physics · Easy

Electromagnetic Induction and Alternating Current: Mutual Inductance Definition MCQ

Solve this quality-checked JEE multiple-choice question, then review the correct answer and explanation.

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Mutual Inductance DefinitionEasyQuestion 20178

Question

Mutual inductance M between two coils is defined such that:
  1. A
    EMF in coil 2 = −M·I₁
  2. B
    EMF in coil 2 = M·I₁
  3. C
    EMF in coil 2 = −M(dI₁/dt)
    Correct
  4. D
    EMF in coil 2 = M·dΦ₁/dt

Correct answer

EMF in coil 2 = −M(dI₁/dt)

Explanation

ε₂ = −M(dI₁/dt). Mutual inductance M depends on geometry, relative orientation, and the medium. Unit is Henry (H).