Question

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Answer 1

ANSWER

(a) An equipotential surface is the plane on which total potential is zero.

It is at the midpoint of the line AB and perpendicular to it.

(b) The direction of the electric field at every point on this surface is normal to the plane in direction of AB.

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Answer 2

Explanation:

An equi-potential surfaces can be defined as the surfaces having the same potential values at each point.Hence a plane.. normal to the Given line AB can be considered as the equi-potential surface.And this plane. is located at midpoint of line AB where the magnitude of the charges are same.

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