A ring of radius R is with a uniformly distributed charge Q on it .A charge q is now placed in the centre of the ring . The force that it will experience is

A ring of radius R carries a uniformly distributed charge +Q. A point charge -q is placed on the axis of the ring at a distance 2R from the centre of the ring and released from rest. The particle executes a simple harmonic motion along the axis of the ring. State True or False.

A positive charge Q is uniformly distributed along a circular ring of radius R .a small test charge q is placed at the centre of the ring .The

A positive charge Q is uniformly distributed along a circular ring of radius R .a small test charge q is placed at the centre of the ring.

A non conducting ring of radius R has uniformly distributed positive chargeq. A small particle of mass m and charge -q is placed on the axis of the ring at point P and released If R gt gt x . The particle will undergo oscillations along the axis of symmerty with an angular frequency that is equal to

Charge q is uniformly distributed over a thin half ring of radius R . The electric field at the centre of the ring is

A ring of radius R has charge -Q distributed uniformly over it. Calculate the charge that should be placed at the center of the ring such that the electric field becomes zero at apoint on the axis of the ring at distant R from the center of the ring.

A fixed ring of radius R is given a charge q. A charge q_0 is brought slowly from infinity to the centre of the ring. The wrong statement is-

A thin circular wire of radius r has a charge Q. If a point charge q is placed at the centre of the ring, then find the increase in tension in the wire.

A point charge q is located at the centre fo a thin ring of radius R with uniformly distributed charge -q , find the magnitude of the electric field strength vectro at the point lying on the axis of the ring at a distance x from its centre, if x gt gt R .

A sperical shell is uniformly charged by a charge q. A point charge q_(0) is at its centre , then