A CE amplifier has a resistor RF connected between collector and base RF = 40 kΩ, RC = 4 kΩ. Given hfe = 50, rπ = 1 kΩ, the output resistance is:

A CE amplifier has a resistor RF connected between collector and base

1.	A CE amplifier has a resistor RF connected between collector and base RF = 40 kΩ, RC = 4 kΩ. Given hfe = 50, rπ = 1 kΩ, the output resistance is:
A.	40 kΩ
B.	20 kΩ
C.	4 kΩ
D.	0.66 kΩ
Answer» D. 0.66 kΩ