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In the circuit shown in fig. when the sw...

In the circuit shown in fig. when the switch is closed, the capacitor charges with a time constant

A

RC

B

2 RC

C

`(1)/(2)RC`

D

RC log2

Text Solution

Verified by Experts

The correct Answer is:
A
In the steady state, no
current is flowing through
the capactior branch, so the
capacitor branches may be
removed from the circuit, the equivalent circuit is shown in
`:. R_(AB) = R_1 +R_2 = r +r = 2r`
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