An electron of mass m and charge -e moves in circular orbit of radius r round the nucleus of charge +Ze in unielectron system. In CGS system the poten
An electron of mass m and charge -e moves in circular orbit of radius r round the nucleus of charge +Ze in unielectron system. In CGS system the potential energy of electron is
A. `(Z^(2)e^(2))/(r)`
B. `-(Ze^(2))/(r)`
C. `(Ze^(2))/(r)`
D. `(mv^(2))/(r)`
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Correct Answer - B
(b) Potential energy = work done
` = int_(oo)^(r)-(Ze^(2) dr)/(r^(2))=-(Ze^(2))/(r)`
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