Electrostatics Question 572

Question: The equivalent capacitance between $ A $ and $ B $ is$ 1\mu F $ . Then the value of capacitance $ C $ is [MP PET 1994]

Options:

A) $ 1.4\mu F $

B) $ 2.5\mu F $

C) $ 3.5\mu F $

D) $ 1.2\mu F $

Show Answer

Answer:

Correct Answer: A

Solution:

Total capacitance is $ \frac{1}{1}=\frac{1}{C}+\frac{1}{(1+2.5)} $

therefore $ 1=\frac{1}{C}+\frac{1}{3.5} $

therefore $ C=\frac{3.5}{2.5}=1.4\mu F $



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