In the Bohr model of hydrogen atom, the electron is pictured to rotate in a circular orbit of radius `5xx 10^-11 m`, at a speed `2.2 xx 10^6` m/ s. What is the current associated with electron motion?

Explanation

Frequecncy of revolution of electron can be wirtten as,
`f=(v)/(2pir)=(2.2xx10^(6))/(2pi(5xx10^(-11)))=7.1xx10^(15)Hz`
`:.` Currently associated, `I=q//t=qf=(1.6xx10^(-19))(7xx10^(15))( :. (1)/(t)=f)`
`=11.2xx10^(-4)A=1.12mA`