Q. In an amplifier the load resistance $R_{L}$ is equal to the plane resistance $(r_{p})$. The voltage amplification is equal to
A) $\mu$
B) $2\mu$
C) $\frac{\mu}{2}$
D) $\frac{\mu}{4}$
Explanation
(c) Voltage gain $A_{v} = \frac{\mu}{1 + \frac{r_{p}}{R_{L}}}\ ,$ for $r_{p} = R_{L} \Rightarrow A_{v} = \frac{\mu}{2}$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.