The magnitude of electric field intensity E is such that, an electron placed in it would experience an electrical force equal to its weight is given by

Options

A. `m"ge"`
B. `(mg)/e`
C. `e/(mg)`
D. `(e^(2))/(m^(2))g`

Explanation

(b) Force on electron
`|F|=qE=eE=mgimpliesE=(mg)/e`