Find potential difference across the capacitor (obviously in steady state)
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In steady state condition no current will flow through the capacitor C. Current in the outer circuit. `i=(2V-V)/(2R+R)=V/(3R)` Potential difference between `A` and `B` `V_A-V+V+iR=V_B` `:. V_B-V_A=iR=(V/(3R))R=V/3`
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