Two identical coins be 4.5 m apart on a table. They carry similar charges. If the force of repulsion of 40/9 N, then charge on each one is

Two positive point charges are 3 m apart their combined charge is 20 mu C . If the force between them is 0.075 N , the charges are

What is the force of repulsion between two charges of 1C each, kept 1m apart in vacumm ?

Two positive points charges are 3 m apart and their combined charge is 20 muC . If the force between them is 0.075 N , then the charges are

Two charge when kept at a distance of 1m apart vacuum have a some force of repulsion .if the force of repulsion between these two charges be same ,whenplaced in an oil of dielectric constant 4 the distance of separation is

Two identical metal spheres A and B have equal and similar charges. They repel each other with a force 103N, when they are placed 10cm apart in a medium of dielectric constant 7. Determine the charge on each sphere.