Inductance

Explanation of question 5

Two inductors, each of a value of 12mH, are connected in parallel. Assuming no mutual inductance, the equivalent inductance will be

  1. 6mH
  2. 12mH
  3. 24mH
  4. 144mH

The answer is :- 1 Using a similar formula to that for resistors, 

1/L = 1/L1 + 1/L2, thus 

1/L = 1/12 + 1/12 = 2/12 = 1/6, thus 

L=6/1 = 6mH

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