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AP EAMCET2012PhysicsElectromagnetic Induction

A primary coil and secondary coil are placed close to each other. A current, which changes at the rate of 25 ~A in a millisecond, is present in the primary coil. If the mutual inductance is 92 10⁻⁶ H , then the value of induced emf in the secondary coil is

Options

  1. A4.6 ~V
  2. B2.3 ~V
  3. C0.368 mV
  4. D0.23 mV

Correct answer

B. 2.3 ~V

Step-by-step solution

The induced emf in secondary coil. e=M d i d t =92 10⁻⁶ 25 1 10⁻³ =2.3 ~V

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