Q. The variation of anode current in a triode corresponding to a change in grid potential at three different values of the plate potential is shown in the diagram. The mutual conductance of the triode is
A) $2.5\ m\ mho$
B) $5.0\ m\ mho$
C) $7.5\ m\ mho$
D) $10.0\ m\ mho$
Explanation
(a) $g_{m} = \frac{\mathrm{\Delta}i_{p}}{\mathrm{\Delta}V_{g}} = \frac{(20 - 15) \times 10^{- 3}}{(4 - 2)} = 2.5\ milli\ mho$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.