defence exam Agniveer Vayu Group X & XY Mock Test 01/2026 Physics Moving Charges and Magnetism The Magnetic Dipole Moment
The force between two short bar magnets with magnetic moments M1 and M2 whose centres are r metres apart is 8 N when their axes are in same line. if the separation is increased to 2r, the force between them is reduced to
1
4 N
2
2 N
3
1 N
4
0.5 N