1.

Magnetostatic potential energy of a magnet with magnetic dipole moment overset(to)(m), in a uniform magnetic field overset(to)(B) is given as …...

Answer»

`overset(to)(m).overset(to)(B)`
`overset(to)(m) xxoverset(to)(B)`
`- (overset(to)(m).overset(to)(B) )`
`-(overset(to)(m) XX overset(to)(B) )`

Solution :We have an expression `U= - m B COS THETA`
`therefore U= - overset(to)(m).overset(to)(B)`


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