An electron of charge `"e"` has a time period of revolution of `"T"` in a Bohr orbit of radius `"r"`. The dipole moment of the electron is

Options

A. `pi r^(2)eT`
B. `pi r^(2)e//T`
C. `pi r^(2)T//e`
D. `T//pi r^(2)e`

Answer

2

Explanation

`M=iA=(e)/(T)A=(e)/(T)pir^(2)`