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A proton has spin and magnetic moment ju...

A proton has spin and magnetic moment just like an electron. Why then its effect is neglected in magnetism of materials?

Text Solution

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Magnetic dipole moment due to spinning proton or electron, `M=(eh)/(4pim)` or `Mprop1/m`.
`:. M_p/M_e=m_e/m_p=(m_e)/(1837m_e)=1/1837lt lt1` `:. M_p lt lt M_e`
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