An electron moves straight inside a charged parallel plate capacitor of uniform charge density. The space between the plates is filled with uniform magnetic field of intensity $B ,$ as shown in the figure, Neglecting effect of gravity, the time of straight line motion of the electron in the capacitor is
An electron moves straight inside a charged parallel plate capacitor of uniform charge density. The space between the plates is filled with uniform magnetic field of intensity $B ,$ as shown in the figure, Neglecting effect of gravity, the time of straight line motion of the electron in the capacitor is
- [NEET 2017]
- A
$\frac{\sigma }{{{\varepsilon _0}lB}}$
- B
$\frac{{{\varepsilon _0}B}}{\sigma }$
- C
$\;\frac{\sigma }{{{\varepsilon _0}B}}$
- D
$\;\frac{{{\varepsilon _0}lB}}{\sigma }$
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