Cathode ray tube A particle of mass m and charge e is moving along the x-axis with speed u when it passes between two charged parallel plates. The plates generate a uniform electric field E0 j in the region 0 ≤ x ≤ b and no field elsewhere.∗
Find the angle through which the particle is deflected by its passage between the plates.
[The cathode ray tube uses this arrangement to deflect the electron beam.]