Question

In an amplifier the load resistance $R_{L}$ is equal to the plate resistance $(r_{p})$. The voltage amplification is equal to

• A. $\mu$
• B. $2\mu$
• C. $\mu/2$
• D. $\mu/4$

Answer 1

Answer: (C)

$\mu/2$

Answer 2

Voltage gain $A_{v} = \frac{\mu}{1 + \frac{r_{p}}{R_{L}}}$, for $r_{p} = R_{L}$ ⇒ $A_{v} = \frac{\mu}{2}$