(a) The circuit and transistor parameters for the circuit shown in Figure 5.20(a) are \(V_{C C}=3 \mathrm{~V}, V_{B B}=1.3 \mathrm{~V}\), and \(\beta=100\). Redesign the circuit such that \(I_{B Q}=5 \mu \mathrm{A}\) and \(V_{C E Q}=1.5 \mathrm{~V}\).

(b) Using the results of part (a), determine the variation in \(V_{C E Q}\) if \(\beta\) is in the range \(75 \leq \beta \leq 125\).

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VBB= 0.2 V Figure P5.20 VCE Rc= 4 (a) VBB= 1.4 V 48= Vcc= 2A 2 V + VCE www + www RC= 4 RE= 2 Vcc= 2 V + VCE H (b) www Rc= 4 Vcc= 2 V