Magnetic field due to a ring having n turns at a distance `x` on its axis is proportional to (if `r =` radius of ring)

Magnetic field due to ring

The field due to a magnet at a distance R~ from the centre of the magnet is proportional

The field due to a magnet at a distance R~ from the centre of the magnet is proportional

The electric field strength due to a ring of radius R at a distance x from its centre on the axis of ring carrying charge Q is given by E = (1)/(4 pi epsilon_(0)) (Qx)/((R^(2) + x^(2))^(3//2)) At what distance from the centre will the electric field be maximum ?

Write formula for magnetic field due to a circular current carrying loop having N turns and R radius at a point on the axis of the loop.

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 )

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 )

A short bar magnet having magnetic dipole moment M is moving along the axis of a fixed conducting (non magnetic) ring of radius R. The axis of the ring is along z direction. (a) Write the z component of magnetic field due to the magnetic dipole at a point P in the plane of the ring, at the instant the magnet is at a distance z from the centre of the ring. Position of point P can be defined in terms of angle theta as shown. (b) Write the magnetic flux through the ring due to the magnetic field produced by the magnet as a function of z. (c) Write the magnitude of emf induced in the ring at the instant shown if speed of the magnet at the moment is v.

A thin circular -conducting ring having N turns of radius R is falling with its plane vertical in a horizontal magnetic field B . At the position MNQ the speed of ring is v the induced e.m.f developed across the ring is