Works7.2_AC equivalent circuit diagram of a CE amplifier

Suppose the AC equivalent circuit diagram of the CE amplifier :Works_7.1 Set the AC parameters of the transistor 2N3904 and input voltage epp as determined in Works_7.1 Run “Interactive” simulation during a sufficient number of periods for fe = 1 kHz - Take a look at voltages and currents in base and collector nodes and compare with Works 7.1 - Take a look at the amplified output VL : • For fe = 1 kHz , 10 kHz , 10 Hz • For fe = 1 kHz , epp fixed to 20 times of the previous value . Conclude about CE amplifier, in the works 7.1 and its AC equivalent circuit diagram ?