Question

hlo gyzz^_^ .how cathode rays produce magnetic effect?? plzz no spamimg

Answer 1

Cathode rays are actually moving electrons or can be said moving charge... and according to biot severt law current (moving electrons) create a magnitic field in its surroundings....

Answer 2

Hey mate here's your answer...

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 any direction other than that of the magnetic field.

The way the magnetic force works is not at all intuitive.  With most other fields the resulting force acts in the direction or opposite to the direction of the field.  The forces produced on moving charged particles by a magnetic field are always perpendicular to the direction of the field.  The forces are also perpendicular to the direction of motion of the charged particle in the local frame of reference.

Hope it helps☺

Regard
@Yusuf.