Two charges `5xx10^-8C` and `-3xx10^-8C` are located 16 cm apart. At what point(s) on the line joining the two charges is the electric potential zero? Take the potential at infinity to be zero.

Two point charges 4muC and -2muC are separated by a distance of lm in air. Calculate, on which point on the line joining the two charges, is the electric potential zero?

Two point charges of magnitudes +100muC and -400muC are kept 30 cm apart. Find the point of zero potential on the line joining the two charges.

The distance between the two charges 25 muC and 36 muC is 11 cm. at what point on the line joining the two, the intensity will be zero?

Two point charges of 5muC and 15 muC are placed in air 20cm apart. Find the electric potential at the middle point of the line joining the two charges.

Two point charges 20 xx l0^-6C and -4 xx l0^-6C are separated by a distance of 50cm in air. Calculate the electrostatic potential energy of the system.

Two charges 2 mu C and -2 mu C are placed at points A and B 6 cm apart. What is the direction of the electric field at every point on this surface?

Two point charges + 0.2muC and 0.01muC are placed 10cm apart. Calculate the work done in reducing the distance 5cm between them.

Two particles of masses 'm' and '9m' are separated by a distance 'r'. At a point on the line joining them the gravitational field is zero. The gravitational potential at that point is (G = Universal constant of gravitation)

Two charges +3.2xx10^-19C and -3.2xx10^-19C are placed 2.4 A apart from an electric dipole.it is placed in a uniform electric field of intensity 4xx10^5 V/m . The electric dipole moment is