A cylindrical bar magnet is kept along the axis of a circular coil. If the magnet is rotated about the axis, will there be any current induced in that coil?

A cylindrical bar magnet is placed along the axis of a circular coil. If the magnet is rotated about that axis, will any current be induced in the coil?

Magnetic field at a distance x along the axis of a short bar magnet is

A metallic coil is kept at rest in a non-uniform static magnetic field. Will there be any emf induced in that coil?

A long straight current carrying conductor is kept along the axis of circular coil carrying same current. What will be the mutual force between them?

How does the magnetic moment of a circular coil vary with its radius?

A permanent bar magnet is cut longitudinally along its axis

North pole of a bar magnet faces a closed ciruclar coil. It is oscillated rapidly along the common axis of the magnet and the coil. Determine the direction of induced current in the coil from Lenz's law.

The magnets of two suspended coil galvanometer are of the same strength so that they produce identical uniform magnetic fields in the region of the coils. The coil of the first one is in the shape of a square of side a and that of the second one is circular of radius (a)/(sqrtpi) . When the same current is passed throught the coils, the ratio of the torque experienced by the first coil to that rxperienced by the second one is