Physics-
General
Easy

Question

The current through choke coil increases from zero to 6 A in 0.3 blank s e c o n d s and an induced e.m.f. of 30 V is produced. The inductance of the coil of choke is

  1. 5 blank H  
  2. 2.5 blank H  
  3. 1.5 blank H  
  4. 2 blank H  

The correct answer is: 1.5 blank H


    open vertical bar e close vertical bar equals L fraction numerator d i over denominator d t end fraction rightwards double arrow 30 equals L cross times fraction numerator left parenthesis 6 minus 0 right parenthesis over denominator 0.3 end fraction rightwards double arrow L equals 1.5 blank H

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