A charge `Q` is spread uniformly over an insulated ring of radius `R`.What is the magnetic moment of the ring if it is rotated with an angluar velocity `omega` about its axis?

A charge q is spread uniformly over an isolated ring of radius 'R'. The ring is rotated about its natural axis and has magnetic dipole moment of the ring as M. Angular velocity of rotation is

A charge q is spread uniformly over an insulated loop of radius r. If it is rotated with an angular velocity omega with respect to normal axis then the magnetic moment of the loop is :

A charge q is spread uniformly over an insulated loop of radius r. If it is rotated with an angular velocity omega with respect to normal axis then the magnetic moment of the loop is :

A charge q is spread uniformly over an insulated loop of radius r. If it is rotated with an angular velocity omega with respect to normal axis then the magnetic moment of the loop is

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

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

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

A conducting ring of radius R has charge Q distributed unevenly over it. If it rotates with an angular velocity omega , the equivalent current will be