Calculate the work required to bring a unit positive charge from infinity to a mid-point between two charges `20muC" and " 10muC` separated by a distance of 50 m.

The net electric force on a charge of +3 muC at the mid-point on the line joining two charges of magnitude +2 muC and -2 muC separated by the distance of 6 mm, is

The net electric force on a charge of +3 muC at the mid-point on the line joining two charges of magnitude +2 muC and +2 muC separated by the distance of 6 mm, is

(a) Calculate the electric potential at points P and Q as shown in the figure below. (b ) Suppose the charge +9muC is replaced by -9muC find the electrostatic potentials at points P and Q ( c) Calculate the work done to bring a test charge +2muC from infinity to the point P. Assume the charge +9muC is held fixed at origin and +2muC is brought from infinity to P.

The force of attractions between two charges 8muC and -4muC is 0.2 N. Find the distance of separation.

The force of attractions between two charges 8muC and -4muC is 0.2 N. Find the distance of separation.

Calculate electrostatic potential energy stored in a system consisting of two point charges 100muC and 40muC separated by a distance of 9cm, in vacuum.

A charge of 20xx10^(-9)C is placed at a point. What work will be required to bring 1 C positive charge from infinity to a distance of 10 cm from it.

Electric potential at a point in an electric field is measured as the work done in bringing unit positive charge from infinity to that point:- The inetnsity of electric field at a point due to a point electric charge is 20NC^-1 and the electric potential at that point is 10 JC^-1 . 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