Q.
Charges are placed on the vertices of a square as shown. Let $E$ be the electric field and $V$ the potential at the centre. If the charges on $A$ and $B$ are interchanged with those on $D$ and $C$ respectively, then
A) $\overrightarrow{E}$ remains unchanged, $V$ changes
B) Both $\overrightarrow{E}$ and $V$ change
C) $\overrightarrow{E}$ and $V$ remains unchanged
D) $\overrightarrow{E}$ changes, $V$ remains unchanged
Explanation
(d) As $\overrightarrow{E}$ is a vector quantity
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.