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An electron revolving in an orbit of rad...

An electron revolving in an orbit of radius `0.5 Å` in a hydrogen atom executes per secon. The magnetic momentum of electron due to its orbital motion will be

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`i=q/t=("ne")/t=(10^16)/1xx1.6xx10^-19=1.6xx10^-3A`
`M=ixxA=ipir^2=1.6xx10^-3xx3.14xx(0.5xx10^-10)^2`
`=1.25xx10^-23Am^2`
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