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//Chapter 15, Example 15.5
clc
//Initialisation
g=2*10**5 //open loop gain
g2=20 //closed loop gain
ro=75 //ouput resistance
ri=2*10**6 //input resistance
//Calculation
ab=g/g2 //1 + AB
ro2=ro/ab //output resistance in ohm
ri2=ri*ab //input resistance in ohm
//Results
printf("Output Resistance = %.1f mOhm\n",ro2*1000)
printf("Input Resistance = %d GOhm",ri2/10**9)
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