Q. The correct curve between voltage gain $(A,)$ and load resistance $(R_{L})$ is
A)
B)
C)
D)
Explanation
(c) According to $\left| A_{v} \right| = \frac{\mu}{1 + \frac{r_{p}}{R_{L}}}$
As $R_{L}$ increases $A_{v}$ also increases
When $R_{L}$ becomes too high then $A_{v} =$ maximum $= \mu$
Hence only option ($c$) is correct
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.