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Capacitors of 6 μF and 3 μF are joined in series. What is the combined capacitance?
A18 μF
B2 μF
C9 μF
D4.5 μF
Answer & Solution
Correct answer: B. 2 μF
1/C = 1/6 + 1/3 = 1/2 per μF, so C = 2 μF.
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