Find the intensity of gravitational field at a point lying at a distance `x` from the centre on the axis of a ring of radius `a` and mass `M`.

Calculate gravitational field intensity at a distance x on the axis from centre of a uniform disc of mass M and radius R .

Find potential at a point 'P' at a distance 'x' on the axis away from centre of a uniform ring of mass M and radius R .

Find potential at a point 'P' at a distance 'x' on the axis away from centre of a uniform ring of mass M and radius R .

Calculate the gravitational field intensity and potential at the centre of the base of a solid hemisphere of mass m , radius R

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

A circular copper ring of radius r, placed in vacuum, has charge q on it. The electric field intensity at the centre of the ring is E_(1) . The electric field intensity of the axis of the ring at a distance x from its centres is E_(2) . The value of E_(2) will be maximum when x=x' What is the value of E_(2) ?