A charge of `4xx10^(-9)C` is distributed uniformly over the circumference of a conducting ring of radius 0.3m. Calculate the field intensity at a point on the axis of the ring at 0.4m from its centre, and also at the centre.

A charge q=10muC is distributed uniformly over the circumference of a ring of radius 3m placed on x-y placed with its centre art origin. Find the electric potential at a point P(0,0,4m)

A charge q=10muC is distributed uniformly over the circumference of a ring of radius 3m placed on x-y placed with its centre art origin. Find the electric potential at a point P(0,0,4m)

Mass of 10 kg is distributed uniformly over a ring of radius 1m. Find the gravitational potential at a point lies on the axis of the ring at a distance of 1m from the centre.

Electric charge Q is uniformly distributed around a thin ring of radius a. find the potential a point P on the axis of the ring at a distance x from the centre of the ring .

A charge is distributed uniformly over a ring of radius 'a'. Obtain an expression for the electric intensity E at a point on the axis of the ring . Hence show that for points at large distances from the ring it behaves like a point charge .

A charge of 17.7 xx 10^(-4)C is distributed uniformly over a large sheet of area 200 m^(2) . The electric field intensity at a distance 20 cm from it in air will be

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.

Mass of 20 kg is distributed uniformly over a ring of radius 2m. Find the the grvitational field at a point lies an th axis of the ring at a distance of 2 sqrt(3) m from the centre.

A ring of radius R = 4m is made of a highly dense material. Mass of the ring is m_(1) = 5.4 xx 10^(9) kg distributed uniformly over its circumference. A highly dense particle of mass m_(2) = 6 xx 10^(8) kg is placed on the axis of the ring at a distance x_(0) = 3 m from the centre. Neglecting all other forces, except mutual gravitational interacting of the two. Caculate (i) displacemental of the ring when particle is at the centre of ring, and (ii) speed of the particle at that instant.

Mass is non - uniformly distributed on the circumference of a ring of radius a and centre at origin . Let b be the distance of centre of mass of the ring from origin. Then ,