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If the electron of the hydrogen atom is ...

If the electron of the hydrogen atom is moving with a speed of ` 2xx 10^(6) m//sec` . In a circular orbit of radius ` 5 xx 10^(-11)` meter , then calucalate current in the orbit .

A

1 mA

B

2 mA

C

2.5 mA

D

7 mA

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