Q. Due to S.C.R. in vacuum tube

A) $I_{p} \rightarrow$ Decrease
B) $I_{p} -$ Increase
C) $V_{p} =$ Increase
D) $V_{g} =$ Increase
Explanation

(a) In SCR (Space charge region) electrons collect around the plate, this cloud decreases the emission of electrons from the cathode, hence plate current decreases

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.