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Manipal MET2010PhysicsElectromagnetic Induction

Current in a coil changes from 5 A to 10 A in 0.2 s . If the coefficient of self-induction is 10 H , then the induced emf is

Options

  1. A112 V
  2. B250 V
  3. C125 V
  4. D230 V

Correct answer

B. 250 V

Step-by-step solution

Induced emf in the coil is given by e= L d i d t or, e=10 (10-5) 0.2 e=250 ~V

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