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Capacitance of a Random Conductor

Find the time...

Question

Find the time constant of charging of the circuit as shown in the figure.

A

\frac{2 R C}{3}

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B

2 R C

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C

3 R C

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D

3 R \frac{C}{2}

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Solution

The correct option is B $2 R C$

On shorting the battery,
$R_{e q} = R$
$T = R_{e q} C_{e q}$ = 2 RC

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