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In the circuit shown in figure E1, 2E2=2...

In the circuit shown in figure `E_1, 2E_2=20V, R_1=R_2=10kOmega` and `C=1muF`. Find the current through `R_1,R_2` and `C` when

(a) `S` has been kept connected to `A` for a long time.
(b) The switch is suddenly shifted to `B`.

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