For an electron moving in a circular orbit of radius around a single proton

PHYSICS · Single correct · CBSE · Physics · Electric Charges and Fields · Electric Charges and Fields

Problem

For an electron moving in a circular orbit of radius

r

around a single proton, the magnitude of the electric force acting on the electron is proportional to which of the following expressions in

r

? (a)

r

(b)

\dfrac{1}{r^{3}}

(c)

\dfrac{1}{r^{2}}

(d)

\dfrac{1}{r}