If the electric potential is zero at a particular point, must the electric field be zero at the point? explain

If the potential is zero , the electric field could be different to zero

Explanation:

The relation between the electric field and the potential is:

=−∇

∇: gradient operator

If the electric potential, , is zero at one point but changes in the neighbourhood of this point, then the Electric field, , at that point is different from zero.

this would be about 43%

+15-35=-20

going in opposite directions