A current of $2\,A$ flows in a system of conductors as shown. The potential difference $({V_A} - {V_B})$ will be ............ $V$
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(b) Current through each arm $D_{AC}$ and $D_{BC}$ = $1A$
${V_D} - {V_A} = 2$ and ${V_D} - {V_B} = 3$ $ \Rightarrow $ ${V_A} - {V_B} = + 1V$
${V_D} - {V_A} = 2$ and ${V_D} - {V_B} = 3$ $ \Rightarrow $ ${V_A} - {V_B} = + 1V$
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