two identical rings of radius `R` have uniformly distributed charge `Q(Qgt0)` each. Both the rings are fixed and are placed coaxially separated by a distance of R. if a small positive point charge is placed at the mid point and is displaced slightly along the axis then,

Two charges -q each are fixed separated by distance 2d. A third charge q of mass m placed at the midpoint is displaced slightly by x (x

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 ismple harmonic motion along the axis of the ring.

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 its centre and than released. Will the charge -q execute a simple harmonic motion along the axis of the ring ?

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 .Find the increment in tension in the ring.

In a free space, a thin rod carrying uniformly distributed negative charge -q is placed symmetrically along the axis of a tin ring of radius R varrying uniformly dostributed charge Q. The mass of the rod is m and length is l=2R . The ring is fixed and the rod is free to move. The rod is displaced slightly along the axis of the ring and then released. Find the period T to the small amplitude oscillations of the rod.

In a free space, a thin rod carrying uniformly distributed negative charge -q is placed symmetrically along the axis of a tin ring of radius R varrying uniformly dostributed charge Q. The mass of the rod is m and length is l=2R . The ring is fixed and the rod is free to move. The rod is displaced slightly along the axis of the ring and then released. Find the period T to the small amplitude oscillations of the rod.

A ring of radius R is carrying uniformly distributed charge +Q . A test charge -q_0 isplaced on its axis at a distance 2R from the centre and released. The motion of the particle on the axis will be :