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(Solved): Q3. Consider the circuit in Figure below. The load resistance value is R_(L)=5k\Omega , and the capa ...
Q3. Consider the circuit in Figure below. The load resistance value is R_(L)=5k\Omega , and the capacitor values are to C_(L)=5pF and C_(C)=5\mu F. And, consider the with transistor parameters V_(BE) (on) =0.7V,\beta =100, and V_(A)=\infty .
Figure 3.
The dc analysis of this circuit yields a quiescent collector current of I_(CQ)=0.986mA.
(a) Determine the small signal parameters gm, rr.and ro. (b) Draw the small signal model of the amplifier. (c) Assume that the transistor internal capacitances are ignored. Compute lower and higher cut-off frequencies of the amplifier.