Question

Let V & E are potential and electric field
intensity at a point then :-

Answer 1

none of these.

The electric field is E=−

dx

dV

if V=0, we can not say E must be zero, we say only E may be zero.

if V



=0, E must be zero when V is max i.e,

dx

dV

=0

if E



=0 , V may be zero when two equal and opposite charges separated by a distance and at the midpoint in between the charges field non-zero but potential is zero.