The parallel plate capacitor has potential difference of 100 V and separation between the plate is 1 mm. An electron is projected along x axis in between the plates. If the electron comes out of the plates along the x axis undevated then the magnitude and direction of magnetic field that must be applied between the plates : (particle is projected with a velocity of `10^5 m//s` along x axis)

Options

A. `B = 1 hatk` Tesla
B. `B = 1 hatj` Tesla
C. `B = 1(- hatj)` Tesla
D. `B = 10 (-hatj)` Tesla

Answer

B