Question 220: Magnetism and Matter

Question

A magnetic dipole in a constant magnetic field has :

Accepted Answer

In uniform magnetic field, the torque experienced by the magnetic dipole is  $$	au $$ = MB sin $$	heta $$
Torque will be maximum when $$	heta $$ = 90
o
$$	au $$
max
= MB sin90
o
= MB
Potential energy of magnetic dipole,
$$\mu $$ = $$-$$ MB cos $$	heta $$
at maximum torque,
$$\mu $$ = $$-$$ MB cos 90
o
= 0

Answer

maximum potential energy when the torque is maximum.

Answer

zero potential energy when the torque is minimum.

Answer

zero potential energy when the torque is maximum.

Answer

minimum potential energy when the torque is maximum.

Magnetism and Matter

A magnetic dipole in a constant magnetic field has :

Choose the correct answer: