The period of oscillation of a bar magnet at a place is 2 s. At the same place, the period of oscillation of another identical bar magnet whose magnetic moment is 4 times to that of first magnet is

Question

Accepted Answer

Correct answer: B. (b) Period of oscillation of a bar, T_1=2 s Let magnetic moment, M_1=M then M_2=4M T=2 I MH T_1 T_2= IM_1H M_2HI = 4MM ⇒ 2 T_2=2 ⇒T_2=1 s .

$The period of oscillation of a bar magnet at a place is 2 s . At the same place, the period of oscillation of another identical bar magnet whose magnetic moment is 4 times to that of first magnet is$

Solution

More Magnetism & Matter PYQs