An attenuator is an interface circuit that reduces the voltage level without changing the output resistance.
(a) By specifying { R }_{ s } and { R }_{ p } of the interface circuit in Fig. 4.150, design an attenuator that will meet the following requirements:
\frac{V_{o}}{V_{g}}=0.125, \quad R_{e q}=R_{\mathrm{Th}}=R_{g}=100 \Omega
(b) Using the interface designed in part (a), calculate the current through a load of { R }_{ L } = 50 Ω when { V }_{ g } = 12 V.
