Question

A magnetic field is applied at perpendicular to the axis of cylindrical discharge tube then cathode and positive ray deflected in​

Answer 1

Answer:

The cathode rays gets deflected towards the positively charged plate

Explanation:

The so-called "rays" in a cathode ray tube are streams of electrons. Electrons are negatively charged, and a magnetic field exerts forces on electrically charged particles that are in motion in a direction other than that of the magnetic field.

The magnetic force on a stream of moving charged particles is calculated as the amount of electrical charge, q, times the velocity of the stream of charges crossed into the magnetic field vector, F = qv X B.

When a magnetic field is applied over the discharge tube, the cathode rays gets deflected towards the positively charged plate. This deviation is because of the fact that cathode rays are negatively charged.