Prove that electric field is negative of potential gradient.

Define electric field intensity and electric potential.Then prove that electric field intensity is negative gradient of electric potential

Derive the relation between the electric field intensity and the potential gradient due to point charge at a point in its field.

Establish a relation between electric field intensity and potential gradient.

A force of 2.5 N is experienced by a point charge of 5xx 10^-6 C at a point in an electric field. The potential gradient at that point in SI unit is

A force of 2.5 N is experienced by a point of charge of 5 x 10^-6 C at a point in an electric field: The potential gradient at that point in SI unit is

A force of 2.5N is experienced by a point charge of 5 xx 10^(-6)C at a point in an electric field. The potential gradient at that point in SI unit is

Give an example, where electric field exists but no potential.