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clear//
//Variables
RC = 12.0 * 10**3 //Collector resistance (in ohm)
RL = 4.7 * 10**3 //Load resistance (in ohm)
R1 = 33.0 * 10**3 //Resistance (in ohm)
R2 = 4.7 * 10**3 //Resistance (in ohm)
IC = 1.0 * 10**-3 //Collector current (in Ampere)
hiemin = 1.0 * 10**3 //hie minimum (in ohm)
hiemax = 5.0 * 10**3 //hie maximum (in ohm)
hfemin = 70.0 //Current gain minimum
hfemax = 350.0 //Current gain maximum
//Calculation
hie = (hiemin * hiemax)**0.5 //hie (in ohm)
hfe = (hfemin * hfemax)**0.5 //current gain
Ri = hie //input resistance (in ohm)
Ris = (R1*R2*Ri)/(Ri*R1+Ri*R2+R1*R2) //Input resistance of the amplified stage (in ohm)
Ai = hfe //Current gain of transistor
rL = RC * RL / (RC + RL) //a.c. load resistance (in ohm)
Avs=Ai*rL/Ri;Av=Ai*rL/Ri;
//Result
printf("\n Input impedance is %0.2f kilo-ohm.\nOverall voltage gain is %0.1f .",Ris*10**-3,Avs)
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