[" A half ring of radius "R" has a charge of "lambda],[" per unit length.The potential at the centre "],[" of the half ring is "(k=(1)/(4 pi varepsilon_(o)))]

A half ring of radius R has a charge of lambda per unit length. The electric force on 1C charged placed at the center is

A half ring of radius r has a linear charge density lambda .The potential at the centre of the half ring is

A half ring of radius r has a linear charge density lambda .The potential at the centre of the half ring is

A quarter ring of radius R is having uniform charge density lambda . Find the electric field and potential at the centre of the ring.

A ring of radius 3 m has charge density lambda . Electric potential at 4 m from its centre on its axis is ____ [k=(1)/(4pi epsilon_(0))]

A ring of radius 3 m has charge density lambda . Electric potential at 4 m from its centre on its axis is ____ [k=(1)/(4pi epsilon_(0))]

A small element l cut from a circular ring of radius a and lamda charge per unit length. The net electric field at the centre of ring is

A dipole of dipole moment P is kept at the centre of a ring of radius R and charge Q. If the dipole lies along the axis of the ring. Electric force on the ring due to the dipole is : (K = (1)/(4pi epsilon_(0)))