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clear//
//Variables
hfe = 100.0 //hfe
hie = 2.0 * 10**3 //hie (in ohm)
Re1 = 100.0 //Emitter resistance (in ohm)
R1 = 15.0 * 10**3 //Resistance (in ohm)
R2 = 5.6 * 10**3 //Resistance (in ohm)
Rc = 470.0 //Collector resistance (in ohm)
//Calculation
Ai = hfe //Current gain
Av = Ai * Rc / hie //Voltage gain
Ri = (R1*R2*hie)/(R1*R2+R2*hie+R1*hie) //Input resistance (in ohm)
beta = Re1 / Rc //feedback ratio
A1v = Av / (1 + beta * Av) //Voltage ratio with feedback
R1i = Ri*(1 + beta * Av) //Input resistancewith feedback (in ohm)
//Result
printf("\n Voltage gain without feedback is %0.3f .\nInput resistance without feedback is %0.0f kilo-ohm.\nVoltage gain with feedback is %0.2f .\nInput resistance with feedback is %0.1f kilo-ohm.",Av,Ri,A1v,R1i)
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