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Expression of orbital magnetic moment is...

Expression of orbital magnetic moment is

A

`mu _(i) = evr `

B

`mu _(i) = (evr)/(2)`

C

`mu _(i) = evr ^(2)`

D

`mu _(i) = ev ^(2) r `

Text Solution

Verified by Experts

The correct Answer is:
D
`mu _(i) = (evr)/( 2)`
`mu _(i) = lA`
`= ( ev)/(2pi r ) pi r ^(2)`
The ratio of `(e)/( 2 m _(e))` is known as gyromagnetic ratio which is constant. The value is `8.8 xx 10 ^(10) C kg ^(-1).`
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