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AIIMS2011PhysicsElectromagnetic Induction

Mutual inductance M between two concentric coils of radii 1 ~m and 2 ~m is

Options

  1. A₀ 2
  2. B₀ 4
  3. C₀ 8
  4. D₀ 10

Correct answer

B. ₀ 4

Step-by-step solution

Here, r₁=1 ~m , r₂=2 ~m Mutual inductance, aligned M & = ₀ r₁^2 2 r₂ & = ₀ 1 2 2 = ₀ 4 aligned

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