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Three charges 2q, -q, and -q are located...

Three charges `2q, -q, and -q` are located at the vertices of an equilateral triangle. At the center of the triangle,

A

The field is zero but potential is non-zero

B

The field is non-zero but potential is zero

C

Both field and potential are zero

D

Both field and potential are non-zero

Text Solution

Verified by Experts

The correct Answer is:
B

If all charges are equal distance from the point and sum of charges = 0, then potential at that point is zero.
Trick:
V = 0 and `E ne 0`
because sum of charges = 0 and all charges are at equal distance.
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