Question

Describe two ways that a charged particle can move through space without getting deflected (i.e. travel in a straight line).

Answer 1

First and the most simple way is that let the charged particle move in a space where the electric field and magnetic field are not present hence the charge will move without getting deflected i.e It will travel in a straight line.

The second way is that when there won't be any force acting on the charge then it will move in a straight line. The force on due to electric field is F=qE hence if no electric field is present charge will move in a straight line.

Similarly F=q(v x B) where v is the velovity of the charge and B is the magnetic field so when the angle between the magnetic field and the velocity of the charged particle is 0 degree then no force wll be experienced by the charge hence it will move in a straight line.

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