Question: problem 2 40 points for the commonbase amplifier cb...
Problem # 2:
For the common-base amplifier (C.B.) in figure 2, characterized by a BJT with βdc =90, determine:
a. The emitter-current IE and the base-current IB
b. The collector-emitter voltage VCE
c. The collector-base voltage VCB
d. Sketch the AC equivalent circuit, using the re model for the common-base BJT, and
determine: The input impedance Zi, the output impedance Zo, assuming ro = ∞ and the open-
output voltage gain AV.