Two magnets of magnetic moments of M1,M2 are placed one over the other with like poles touching, then the resultant magnetic moment is:
A bar magnet of magnetic moment M1 is axially cut into two equal parts. If these two pieces are arranged perpendicular to each other, the resultant magnetic moment is M2, then the value of M1M2 is
Two short bar magnets of moments M1 and M2 are placed one on the other as shown in the figure. The resultant magnetic induction R at the point P is making 300 as shown in the figure. The ratio of the magnetic moments of the magnets is:
Two bodies of masses m1 and m2 have equal kinetic energies. If p1 and p2 are their respective momentum, then ratio p1:p2 is equal to