question_answer

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                                                [CPMT 1975, 80; AFMC 2001; BCECE 2003]

A)                    \[mge\]

B)                                      \[\frac{mg}{e}\]

C)                    \[\frac{e}{mg}\]

D)                                      \[\frac{{{e}^{2}}}{{{m}^{2}}}g\]