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In a hydrogen atom, electron moves in an...

In a hydrogen atom, electron moves in an orbit of radius `5xx10^(-11)m` with a speed of `2.2xx10^(6)(m)/(s)`. Calculate the equivalent current.

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Current `i=f.e =v/(2pir).e`
`=(2.2 xx 10^(6))/(2pi xx 5 xx 10^(-11)) xx 1.6 xx 10^(-19)`
`=1.12 xx 10^(-3) amp =1.12` mA.
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