Q. The plate current will be zero in triode, if the negative potential applied on grid is (here $\mu$ is amplification factor, $R_{p}$ is plate resistance, $V_{p}$ is plate potential)
A) $V_{p}/\mu$
B) $\mu V_{p}$
C) $V_{p}R_{p}$
D) $V_{p}/R_{p}$
Explanation
(a) $\mu = \frac{(V_{p} - 0)}{( - V_{g} - 0)} = \frac{V_{p}}{- V_{g}}\ \ or\ - V_{g} = \frac{V_{p}}{\mu}.$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.