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An electron of hydrogen atom is revolvin...

An electron of hydrogen atom is revolving around proton with radius `h^2//4pi^2me^2` with speed `2 pi e^2//h`. The equivalent current is

A

`4 pi^2 me^4//h^3`

B

`4 pi^2 me^5//h^3`

C

`4 pi^2 m^2 e^4//h^3`

D

a, b and c ar all correct.

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