Magnetic moments of two bar magnets may be compared with the help of
Deflection magnetometer
Vibration magnetometer
Both of the above
None of the above
Define pole strength of magnet. and Write the unit of pole strength of magnet
A magnet of magnetic moment $M$ and pole strength $m$ is divided in two equal parts, then magnetic moment of each part 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
What is the difference between Gauss’s law in electrostatics and Gauss’s law in magnetism ?
If a hole is made at the centre of a bar magnet, then its magnetic moment will