Question:
An electron is projected horizontally with a kinetic energy of $10 \mathrm{keV}$. A magnetic field of strength $1.0 \times 10^{-7} \mathrm{~T}$ exists in the vertically upward direction.
(a) Will the electron deflect towards right or towards left of its motion?
(b) Calculate the sideways deflection of the electron in travelling through $1 \mathrm{~m}$. Make appropriate approximations.
Solution:
