Magnetic field om the axis of the ring

Define strength of magnetic field. Obatain an expression for strength of magnetic field on the axis of a bar magnet.

A charge q is unifomly distrybuted over a nonconducting ring of radius R. The ring is rotated about an axis passing through its centre and perpendicular to the plane of the ring with frequency f. The ratio of electric potential to the magnetic field at the centre of the ring depends on.

Magnetic Field on the Axis OF a Ring || Examples on Magnetic Field Due to Straight Wire || Graph OF Magnetic Field Due to a Ring

The magnetic field on the axis at a distance z from the centre of the bar magnet would be ?

In the figure shown, the magnet is pushed towards the fixed ring along the axis of the ring and it passes through the ring.

A beam of alpha particles projected along + x-axis, experiences a force due to a magnetic field along the +y-axis figure. What is the direction of magnetic field.

Magnetic field due to ring

A uniformly charged ring of radius R is rotated about its axis with constant linear speed v of each of its particle. The ratio of electric field to magnetic field at a point P on the axis of the ring distant x=R from centre of ring is ( c is speed of light )