1.

In a hydrogen atom, the electron is moving in a circular orbit of radius 5.3 xx 10^(-11)m with a constant speed of 2.2 xx 10^(6) ms^(-1) . The electric current formed due to the motion of electron is ......

Answer»

1.12 A
1.06 mA
1.06 A
1.12 mA

Solution :1.06 mA
Electric CURRENT DUE to motion of electron
I = `(q)/(t)`
`thereforeI = (e)/(T) `
` = (eV)/(2 pi r ) "" (because V = (2PI r)/(T)) `
= `(1.6 xx 10^(-19) xx 2.2 xx 10^(6))/(2 xx 3.14 xx 5.3 xx 10^(-11))`
`= 0.106 xx 10^(-2)`
` 1.06 ` mA


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