Electrostatics Question 535

Question: . In the circuit diagram , the resultant capacitance between P and Q is [MP PET/PMT 1988]

Options:

A) $ 47\mu F $

B) $ 3\mu F $

C) $ 60\mu F $

D) $ 10\mu F $

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Answer:

Correct Answer: B

Solution:

The given circuit can be drawn as where $ C=(3+2)\mu F=5\mu F $

$ \frac{1}{C _{PQ}}=\frac{1}{5}+\frac{1}{20}+\frac{1}{12}=\frac{20}{60}=\frac{1}{3} $

therefore $ C _{PQ}=3\mu F $



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