1.

If m is magnetic moment and B is the magnetic field, then the torque is given by                                               [DCE 2000]

A.            \[\overset{\to \,\,\to }{\mathop{m.B}}\,\]                
B.            \[\frac{\overset{\to }{\mathop{|m|}}\,}{\overset{\to }{\mathop{|B|}}\,}\]
C.            \[\overset{\to \,\,\,\,\to }{\mathop{m\times B}}\,\]          
D.            \[\overset{\to \,\,\,\,\,\,\,\,\,\,\to }{\mathop{|m|.\,|B|}}\,\]
Answer» D.            \[\overset{\to \,\,\,\,\,\,\,\,\,\,\to }{\mathop{|m|.\,|B|}}\,\]


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