Physics-
General
Easy

Question

In which of the following circuit is the current maximum just after the switch S is closed

  1. (i)    
  2. (ii)    
  3. (iii)    
  4. Both (ii) and (iii)    

The correct answer is: (ii)


    At t = 0 current through L is zero so it acts as open circuit. The given figures can be redrawn as follow.

    i subscript 1 end subscript equals 0 i subscript 2 end subscript equals fraction numerator E over denominator R end fraction i subscript 3 end subscript equals fraction numerator E over denominator 2 R end fraction
    Hence i2 > i3 > i1

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