Show that the energy of a magnetic dipole m in a magnetic field b is u--m b

showm

Explanation:

Consider a dipole having magnetic moment 'm' is placed in magnetic field then the torque exerted by the field on the dipole is

Now to rotate the dipole in the field to its final position the work required to be done is

Minimum energy mB is for the case when m is anti parallel to B.

Minimum energy -mB is for the case when m is parallel to B.

answer: decibel

explanation:

he made 11 calls in one day