There is a ring of radius r having linear charge density `lambda` and rotating with a uniform angular velocity `omega.` the magnetic field produced by this ring at its own centre would be

A conducting ring of radius r having charge q is rotating with angular velocity omega about its axes. Find the magnetic field at the centre of the ring.

A conducting ring of radius r having charge q is rotating with angular velocity omega about its axes. Find the magnetic field at the centre of the ring.

A conducting ring of radius r having charge q is rotating with angular velocity omega about its axes. Find the magnetic field at the centre of the ring.

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 ring of mass m and radius R is given a charge q. It is then rotated about its axis with angular velocity omega .Find (ii) Magnetic field produced at the centre of ring.

A ring of mass m and radius R is given a charge q. It is then rotated about its axis with angular velocity omega .Find (ii) Magnetic field produced at the centre of ring.

A dielectric circular disc of radius R carries a uniform surface charge density sigma . If it rotates about its exis with angular velocity omega , the magnetic field at the cente of disc 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.