1.

In a hydrogen atom, electron moves in an orbit of radius 5 xx 10^(-11) m with a speed of 2.2xx10^6 m/s . Calculate the equivalent current.

Answer»

Solution :`"Current I "=f.e=(V)/(2PI r).e=(2.2xx10^(6))/(2pixx5xx10^(-11))xx1.6xx10^(-19)`
`=1.12xx10^(-3)" amp "=1.12 mA`.


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