A short magnet is allowed to fall along the axis of a horizontal metallic ring. Starting from rest, the distance fallen by the magnet in one second may be.....$m$

Magnetic dipole moment is a

Earth magnetic field at equator is approximately $0.4\,G$ then earth's dipole moment would be (nearly) (ralius of earth $= 6.4 \times 10^6\,m$ )

Of the following Fig., the lines of magnetic induction due to a magnet $SN$, are given by

Points $A$ and $B$ are situated perpendicular to the axis of a $2\,cm$  long bar magnet at large distances $X$ and $3X$  from its centre on opposite sides. The ratio of the magnetic fields at $ A$ and $B$  will be approximately equal to

A bar magnet of length $'l'$ and magnetic dipole moment $'M'$ is bent in the form of an arc as shown in figure. The new magnetic dipole moment will be