1.

Is the electrostatic potential necessarily zero at a point where the electric field strength is zero? Give an example to illustrate your answer,.

Answer» No, As we know that electric field is equal to negative of potential gradient:
`E = - (dV)/(dr)`
so, even if electric field at a point is zero, the potential may have some non zero constant value at that point.
Example. Electric fied inside a charged conduting sphere is zero but potential at any point inside the sphere is same as that on the surface of sphere.


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