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

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

Points $A$ and $B$  are situated along the extended axis of $2\, cm$  long bar magnet at a distance $x $ and $2x$ $ cm$  respectively. From the pole nearer to the points, the ratio of the magnetic field at $ A$ and $B$ will be

Two small bar magnets are placed in a line with like poles facing each other at a certain distance $d$  apart. If the length of each magnet is negligible as compared to $ d,$  the force between them will be inversely proportional to

The name magnet came from which island ?

A bar magnet of magnetic moment $M$ is placed at right angles to a magnetic induction $B.$ If a force $F$ is experienced by each pole of the magnet, the length of the magnet will be