The open-circuit (left(R_{L}=infty ight)) voltage gain of the ac equivalent sourcefollower circuit shown in Figure P4.31 is

Question:

The open-circuit $\left(R_{L}=\infty\right)$ voltage gain of the ac equivalent sourcefollower circuit shown in Figure P4.31 is $A_{v}=0.98$. When $R_{L}$ is set to $1 \mathrm{k} \Omega$, the voltage gain is reduced to $A_{v}=0.49$. What are the values of $g_{m}$ and $r_{o}$ ?

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