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Charging of Capacitors

Time constant...

Question

Time constant of charging of capacitor shown in figure is

A

\frac{R C}{2}

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B

0.0

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C

2 RC

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D

infinite

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Solution

The correct option is B 0.0
Time constant $τ = R_{e q} C$

here $R_{e q}$ is equivalent resistance across capacitor after short circuiting battery $R_{e q} = 0$

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