Electrostatics ...

A body can be negatively charged by

The charge q is projected into a uniform electric field E, work done when it moves a distance Y is

Energy associated with a moving charge is due to a

A total charge Q is broken in two parts Q₁ and Q₂ and they are placed at a distance R from each other. The maximum force of repulsion between them

Two identical conducting spheres carrying different charges attract each other with a force F when placed in air medium at a distance `c1\' apart. The spheres are brought into contact and then taken on their original positions. Now the two spheres repel each other with a force whose magnitude is equal to that of the initial attractive force. The ratio between initial charges on the spheres is

In nature, the electric charge of any system is always equal to

Two small spheres each having the charge +Q are suspended by insulating threads of length L from a hook. This arrangement is taken in space where there is no gravitational effect, then the angle between the two suspensions and the tension in each will be

A solid spherical conductor of radius R has a spherical cavity of radius a(a < R) at its centre. A charge +Q is kept at the center. The charge at the inner surface, outer and at a position r (a < r < R) are respectively

There are two metallic spheres of same radii but one is solid and the other is hollow, then