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

The force between two charges 4C and -2C which are separated by a distance of 3km is

The force of attraction between two charges each of magnitude 3C separated by a distance 2m in air is

The force between two charges separated by a distance 1m is 1.8N. The charges are in the ratio 1: 2 then the charges are

The force between two charges separated by a distance "1m" is "1.8N" .The charges are in the ratio "1:2 then the charges are

Two identical metal sphere have charges +15 mu C and +25 mu C and are separated by a distance . If the spheres are first brought into contact and then separated to the original distance then the ratio of the force between them to the previous force is

There are 2 charges +1 mu c and +5 mu c separated by a certain distance d. The ratio of forces acting on them will be

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 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 ?