The perpendicular drawn to magnetic axis and passing through centre of magnetic dipole is called as

A line passing through places having zero value of magnetic dip is called

A line passing through places having zero value of magnetic dip is called

A thin dielectric disc uniformly distritbuted with charge q has radius r and is rotated n times per second about an axis perpendicular to the disc and passing through the centre. Find the magnetic induction at the centre of the disc.

Show that the magnetic field at a point due to a magnetic dipole is perpendicular to the magnetic axis if the line joining the point with the centre of the dipole makes an angle of tan^(-1) (sqrt(2)) with the magnetic axis.

Show that the magnetic field at a point due to a magnetic dipole is perpendicular to the magnetic axis if the line joining the point with the centre of the dipole makes an angle of tan^(-1) (sqrt(2)) with the magnetic axis.

Show that the magnetic field at a point due to a magnetic dipole is perpendicular to the magnetic axis if the line joining the point with the centre of the dipole makes an angle of tan^(-1) (sqrt(2)) with the magnetic axis.

The imaginary vertical plane passing through the axis of a freely suspended magnetic needle is called

The magnetic field line passing through the centre of a current-carrying circular ring is