The ratio of two charges is 2:3 and their distance of separation is 5 cm. If the force of attraction between them is 96 dyn, determine the magnitude the magnitude of the charges .

Two equal point charges ar placed in air 10 cm aprat and the force of interaction between them is 50 mg - wt . Determine the magnitude of the charges.

If the distance between the centre of a gold sphere of radius 5mm and of a lead sphere of radius 11.5 cm is 15 cm and the force of gravitational attraction between them is 2.16xx10^(-4) dyn , find the value of G, the universal gravitational constant. Densities of gold and lead are 19.3g*cm^(-3) and 11.3 g*cm^(-3) respectively.

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 ?

A body of mass m is divided into two parts. The mass of one part is xm and that of the other part is (1-x) m. For a definite distance of separation between them, if the gravitational force of attraction has to be the maximum, the value of x should be

Two point charges seperated by a distance d repel each other with a force of 9N. If the seperation between them becomes 3d, the force of repulsion will be

The distance between the centres of two spheres of masses 50 kg and 10 kg is 30 cm. The mutual force of attraction between them is equal to the weight of a body of mass 1/(28) mg. Determine the value of the gravitational constant.

Two point charges q_1 and q_2 are such that q_1q_2 lt 0 . What is the nature of the force acting between the two charges?

Two negative point charges each of magnitude 2 esu and another point charge q are lying on a straight line. Each of the charges are in equilibrium. Determine the position, value and the nature of the charge q.