What is the electric field when the potential is zero?

Now, if V(r)=0 for all r then certainly the gradient is also zero everywhere, and thus, the electric field is zero everywhere.

Is the electrostatic potential necessarily zero at a point where the electric field strength is zero give reason?

Electrostatic Potential and Capacitance Electric potential necessarily need not be 0 if the electric field at that point is zero. For instance, at a point mid-way between two equal and similar charges, the electric field strength is zero but the electric potential is not zero.

Can there be electric potential at a point with zero electric potential give an example?

Yes,There can exist electric potential at a point where the electric field is zero. Example:Inside the hallow spherical charged conductor, electric field is zero but potential is not zero.

Can electric field intensity zero?

Yes, There can exist potential at a point where with zero electric intensity is zero. (1)Between two similar charges intensity of electric field is zero. But potential zero. (2) Inside the charged spherical conductor electric field intensity is zero but potential is not zero.

Can electrostatic potential at a point be zero while electric field at that point is not zero?

Yes, electrostatic potential can be zero at a point where electric field is not zero.

Can electric potential at a point be zero and not zero?

If the electric potential at a certain point is zero, then the electric field at the same point is also zero. Can electric potential at a point be zero while the electric field is not zero? Yes, electric potential can be zero at a point even when the electric field is not zero at that point.

Does electric field have to be the same as electric potential?

If electric field at some point is zero, it is not necessary for the electric potential to be the same. Consider the mid point of line joining to equal charges of same sign. Field there is zero, but potential is finite and positive.

When does an electric field exist between two points?

An electric field exists between two points when there is a difference in potential between those two points. So you could have two points which are both at a potential of zero in which case there would be no electric field. But the two points could both have potentials of 4 V.

When electric field is zero the energy required to overcome it?

When electrical field is zero, the energy required to overcome it will also be zero. When a particle is to be moved from a point, say A to a point, say B such that the electric field intensity at A is equal to that at B, the net change in electric field experienced by…