Question

In the Bohr model of the hydrogen atom, an electron in the 2nd excited state moves at a speed of 5.48X10^5 m/s in a circular path having a radius of 2.12X10^-10 m. What is the effective current associated with this orbiting electron?
T= 2πR/v,

I=e/T=ev/2πR=
=1.6•10⁻¹⁹•5.48•10⁵/2•π•2.12•10⁻¹º=
=6.58•10⁻⁵A

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