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1.
Magnetic dipole moment is a
2.
The materials suitable for making electromagnets should have
3.
Isogonic lines on magnetic map will have
4.
The time period of a vibration magnetometer is 
. Its magnet is replaced by another magnet whose moment of inertia is 3 times and magnetic moment is 1/3 of the initial magnet. The time period now will be
. Its magnet is replaced by another magnet whose moment of inertia is 3 times and magnetic moment is 1/3 of the initial magnet. The time period now will be
5.
If magnetic lines of force are drawn by keeping magnet vertical, then number of neutral points will be