JAMB Physics 1989 Question 39

Question 39

Capacitors

Three 2-μF capacitors are arranged as shown in the above circuit. The effective capacitance between E and F is

Diagram for this question
  1. A.0.75 μF
  2. B.1.33 μF
  3. C.3.00 μF
  4. D.6.00 μF.
Show the answer and explanation

Answer: B (1.33 μF)

Explanation

The two in parallel give 4 μF, in series with 2 μF: C = (2 × 4)/(2 + 4) ≈ 1.33 μF.