Two charges `5 mu` C and `4 mu`C are separated by a distance `20cm` in air. Work to be done to decrease the distance to `10cm` is `(x)/(10)J` .Where `x` is........

The force between two charges 9 mu C and 1mu c separated by a distance 3 m in space is..........

Two point charges 6 mu C and 2 mu C are separated by 3 cm in free space. Calculate the work done in separating them to infinity.

Two point charges of 5 mu C and 20 mu C are separated by a distance of 2m. Find the point on the line joining them at which electric field intensity is zero.

Two point charges 4 mu C and -2 mu C are separated by a distance of 1m in air. Calculate at what point on the line joining the two charges is the electric potential zero ?

Two charges +5mu C and +10 mu C are placed 20 cm apart. The net electric field at the mid-point between the two charges is

Two charges 1 mu C and 1 mu C are placed at a distance of 10cm .The position of third charge between them so that it does not experience any force

Two point charges 4mu C and 9muC are separated by 50cm. The potential at the point between them where the field has zero strength is

Two charges 1 mu C and 1 mu C are placed at a distance of 10 cm .The position of third charge between them so that it does not experience any force