Q. The electrons in the beam of television tube move horizontally form south to north. The vertical component of the earth’s magnetic field points down. The electron is deflected towards
A) West
B) No deflection
C) East
D) North to south
Explanation
(c) On applying Fleming’s left hand rule we find that the force acting on the electron is towards east, so it will deflect towards east.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.