JEE MAIN - Physics (2021 - 26th August Morning Shift - No. 25)
Two short magnetic dipoles m1 and m2 each having magnetic moment of 1 Am2 are placed at point O and P respectively. The distance between OP is 1 meter. The torque experienced by the magnetic dipole m2 due to the presence of m1 is ........... $$\times$$ 10$$-$$7 Nm.
_26th_August_Morning_Shift_en_25_1.png)
Answer
1
Explanation
$$\overrightarrow \tau = \overrightarrow {{M_2}} \times \overrightarrow {{B_1}} $$
$$\tau = {M_2}{B_1}\sin 90^\circ $$
$$ = 1 \times {{{\mu _0}} \over {4\pi }}{{{M_1}} \over {{{(1)}^3}}}1$$
= 10$$-$$7 N.m
$$\tau = {M_2}{B_1}\sin 90^\circ $$
$$ = 1 \times {{{\mu _0}} \over {4\pi }}{{{M_1}} \over {{{(1)}^3}}}1$$
= 10$$-$$7 N.m
Comments (0)
