The potential gradient due to a point charge of 2 nano coulomb at a point is -2N/C Find the distance of the point of observation.

The potential gradient at a point due to a 5nC charge is - 5N/C. Calculate the distance of the point from the charge.

Potential at a point due to a positive charge of 10 muC at a distance of 9 m is

Electric potential at a point due to a point charge varies……….as the distance between the point of observation and the point charge.

From the concept of potential gradient find the expression of the electric field intensity at a point in the field of an isolated point charge.