Question: The input impedance to a common-emitter transistor amplifier is 1.2 k with = 140, r0 = 50 , and RL = 2.7 . Determine:

The input impedance to a common-emitter transistor amplifier is 1.2 kΩ with β = 140, r0 = 50 Ω, and RL = 2.7 Ω. Determine:
a. re.
b. Ib if Vi = 30 mV.
c. Ic.
d. Ai = Io/Ii = IL / Ib
e. Av = Vo/Vi.

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