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NEET2006PhysicsElectromagnetic InductionActual

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:

Options

  1. A16 mH
  2. B10 mH
  3. C6 mH
  4. D4 mH

Correct answer

D. 4 mH

Step-by-step solution

Mutual inductance between coils is aligned M & =k I₁ I₂ M & =1 2 10⁻³ 8 10⁻³ x=1 & =4 10⁻³=4 mH aligned

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