Two small charged sphers repel each other with a force of ` 2 xx 10^(-3)N`. When taken 10 cm farther a part , the force ` 5 xx 10^(-4)N` . What are the charges and what was their original distance ?

Two equal charges repel each other with a force of 0.4 newton when situated 10 cm apart in air. Find the magnitude of the charge.

The charge of one of two small charged conductors is twice that of the other. The two conductors repel each other with a force of 50 dyn. If the distance between them is decreased by 3 cm, the force becomes 128 dyn. What are the magnitudes of the charges ? What was the initial distance ?

Two similar and equal charges repel each other with force of 1.6 N. When placed 3m apart Strength of each charge is -

Two charges placed in air repel each other by a force of 10^(-4)N . When oil is introduced between the charges, then the force becomes 2.5 xx 10^(-5)N The dielectric constant of oil is

Two charges placed in air repel each other by a force of 10^(-4)N . When oil is introduced between the charges, then the force becomes 2.5 xx 10^(-5)N The dielectric constant of oil is