Topic: Electrostatics
Subtopic: Electric Potential
Charges are placed on the vertices of a square as shown. Let \overrightarrow{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

\( \overrightarrow{E}\) remains unchanged, V changes
Both \(\overrightarrow{E}\) and V change
\(\overrightarrow{E} \) and V remain unchanged
\(\overrightarrow{E} \)changes, V remains unchanged
Solution:
On interchanging A and B with C and D direction of electric field will get reversed. But potential being scaler quantity remains unchanged.
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