The magnitude of electric intensity at a distance `x` from a charge `q` is `E`.An identical charge is placed at a distance `2x` from it Then the magnitude of the force it experience is ..

The electric field due to a point charge at a distance 6 m from it is 630 N/C. The magnitude of the charge is

The maximum electric field intensity on the axis of a uniformly charged ring of charge q and radius R is at a distance x from the centre of the ring.The value of x is

The magnitude of electric field intensity due to a point charge is 10 N/C at a distance 1 m from it. Calculate the magnitude of charge.

Two point charges +9e and +e are kept at a distance 'a' from each other. A third charge is placed at a distance 'x' from +9e on the line joining the above two charges. For the third charge to be in equilibrium 'x' is

What is electric field intensity at a point at a distance r meter from q coulomb of a charge in free space ?

A sphere of radius R carries charge such that its volume charge density is proportional to the square of the distance from the centre. What is the ratio of the magnitude of the electric field at a distance 2 R from the centre to the magnitude of the electric field at a distance of R//2 from the centre?

Two charges e and 3e are placed at a distance r. The distance of the point where the electric field intensity will be zero is

Two charge 9e and 3e are placed at a distance r. The distance of the point where the electric field intensity will be zero is :