Two equal charges placed in air and separated by a distance of 2 m repel each other with a force of `10^-4` N. Calculate the magnitude of either of the charges.

Two equal charges placed in air separated by a distance 3 m repel each other with force 0.1 g f. Calculate the magnitude of either of the charges.

Two charges of +1C and +2C separated by a distance of 1 m, repel each other with a force of vecF_1 and vecF_2 respectively. What is the ratio of vecF_1 and vecF_2 ?

Two similar charges repel each other with a force of 44.1 Newton when placed 2cm apart in air. Calculate the strength of charge.

Two point charges 4Q and Q are separated by a distance of 1 m in air. Also calculate the electrostatic potential energy of the system of two charges, taking Q = 2 xx 10^-7C .

The force between two equal charges placed in a medium at a distance of 9 cm from each other is 16 dyne. On increasing one of the charges by 56 statC, it is found that the distance between the charges must be changed by 3 cm in order to keep the force between them the same Calculate the magnitude of the charges and the dielectric constant of the medium . Given : 1 C = 3 xx 10^9 statC .

Two equally charged identical metal spheres A and b repel each other with a fore 2.0 xx 10^-5 N . Another identical uncharged sphere C is touched to A and the nplaced at the md point between A and B. What is the net electric force on C?

Two charges 1C and 2C are separated by a distance of 1 m, in air. If the force experienced by the charge of 2C when the charges are (a) like (b) unlike.