Q. When the speed of electrons increase, then the value of its specific charge
A) Increases
B) Decreases
C) Remains unchanged
D) Increases upto some velocity and then begins to decrease
Explanation
(b) Here the velocity of electron increases, so as per Einstein’s equation mass of the electron increases, hence the specific charge $\frac{e}{m}$ decreases
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.