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JIPMER2010PhysicsElectromagnetic Induction

In 0.1 s , the current in a coil increases from 1 A to 1.5A. If inductance of coil is 60 mH , then induced current in external resistance of 3 will be

Options

  1. A1A
  2. B0.5A
  3. C0.2A
  4. D0.1A

Correct answer

D. 0.1A

Step-by-step solution

Induced emf, aligned |e|=L d i d t & = (60 10⁻³ ) (1.5-1) 0.1 & = 60 10⁻³ 0.5 0.1 =0.3 ~V aligned Induced current, i= e R = 0.3 3 =0.1 ~A

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