The parameters of the transistor in the circuit in Figure P7.40 are \(\beta=100\), \(V_{B E}\) (on) \(=0.7 \mathrm{~V}\), and \(V_{A}=\infty\). Neglect the capacitance effects of the transistor.

(a) Draw the three equivalent circuits that represent the amplifier in the low-frequency range, midband range, and the high frequency range.

(b) Sketch the Bode magnitude plot.

(c) Determine the values of \(\left|A_{m}\right|_{\mathrm{dB}}, f_{L}\), and \(f_{H}\).

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V RB = 1 MS2 V+= 12 V ww Rc = 5.1 R = 1 R = www HH Cc=10 F C = 10 pF 500 Figure P7.40