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JAMB Physics 2014 Question 35

Question 35

Capacitors

Calculate the effective capacitance of the circuit above.

Diagram for this question
  1. A.1μf.
  2. B.2μf.
  3. C.3μf.
  4. D.4μf.
Show the answer and explanation

Answer: A (1μf.)

Explanation

The three 2 μF capacitors are in parallel: 6 μF. This is in series with 2 μF and 3 μF: 1/C = 1/6 + 1/2 + 1/3 = 1, so C = 1 μF.