Q. A current of $2\ A$ flows in a system of conductors as shown. The potential difference $(V_{A} - V_{B})$ will be
A) $+ 2V$
B) $+ 1V$
C) $- 1V$
D) $- 2V$
Explanation
(b) Current through each arm $DAC$ and $DBC = 1A$
$V_{D} - V_{A} = 2$ and $V_{D} - V_{B} - 3 \Rightarrow V_{A} - V_{B} = + 1V$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.