Physics-
General
Easy

Question

Switch S of the circuit shown in figure. is closed at t = 0. If e denotes the induced

emf in L and i, the current flowing through the circuit at time t, which of the following graphs is correct

  1.    
  2.    
  3.    
  4.    

The correct answer is:


    At the time t = 0, e is max and is equal to E, but current i is zero.
    As the time passes, current through the circuit increases but induced emf decreases

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