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NEST2021PhysicsElectromagnetic Induction

Consider two identical circular solenoids, each of length L , radius L and total number of turns N . The solenoids are on the same axis and distance d L apart. The ratio of mutual inductance to self inductance for this system is

Options

  1. A^2 N^2 L d^3
  2. B^2 L d^3
  3. C^2 L N^2 d^3
  4. D^2 L 2 d^3

Correct answer

D. ^2 L 2 d^3

Step-by-step solution

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