The electric P.E of an electron in an orbit at a distance rn from the – McqOptions

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1.	The electric P.E of an electron in an orbit at a distance rn from the positive charge_____________?
A.	Ke2/rn
B.	Ke2/rn2
C.	ÀKe2/rn
D.	ÀKe2/rn2
Answer» D. ÀKe2/rn2

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