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A proton has spin and magnetic moment just like an electron. Why then its effect is neglected in magnetism of materials ? |
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Answer» <P> Solution :The COMPARISON between the spinning of a proton and an electron can be DONE by comparing their magnetic dipole moment which can be given by.Magnetic dipole moment of proton, `M_(p)= (eh)/( 4 pi m_(p) )` `M_(e) = (eh)/( 4 pi m_(e) ) ` `THEREFORE M prop (1)/( m) ""[because (eh)/( 4 pi) " CONSTANT" ]` `therefore (M_p)/( M_e) = (m_e)/( m_p) ` `therefore M_p = (M_c xx m_c)/( 1837 m_e) ""[because m_(p) = 1837 m_(e) ]` `therefore M_(p) lt lt M_(e)` This shows the effect of magnetic moment of proton is neglected as compared to that of electron. |
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