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JAMB Physics 2008 Question 44

Question 44

Electromagnetic Induction

Given three inductors of inductances 5mH, 10mH and 20mH connected in series, the effective inductance is

Diagram for this question
  1. A.0.35 mH.
  2. B.3.50 mH.
  3. C.2.90 mH.
  4. D.35.00 mH.
Show the answer and explanation

Answer: D (35.00 mH.)

Explanation

Inductors in series add like resistors: 5 + 10 + 20 = 35 mH.