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

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 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 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........

An attractive force of 5 N is acting between two charges of + 2muC and - 2 mu C placed at some distance. If the charges are mutually touched and placed again at the same distance , what will be the new force, between them ?

What should be the position of charge q = 5 mu C for it to be in equilibrium on the line joining two charges q_1 = -4 mu C and q _ 2 = 16 mu C separated by 9 cm. Will the position change for any other value of charge q ? ( 9 cm from - 4 muC )

Two point charges,each of magnitude "20 mu C" ,are separated by a distance of "1.5m" in a large vessel of water.The relative permittivity varepsilon_(1) of water is "80" .Calculate the force between them.