When an electron is accelerated through a potential difference `V`, it experience a fromce `F` through as uniform transverse magnetic field. If the potential difference is increased to `2 V,` the force experoenced by the electron in the same magnetic field is

Options

A. 2F
B. `2sqrt2F`
C. `sqrt2F`
D. `4F`

Answer

C

Explanation

`F=Bqv or Fpropv`
`Now, v=sqt((2qV)/m)`
`:. FpropsqrtV`