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//chapter 2
//example 2.9
//page 54
clear all;
clc ;
//given
E=5;//i/p voltage in volts
Io=2;//o/p current in mA
Eo=4.5;//o/p voltage in volts
VF=0.7;//forward voltage drop across diode
//finding value of R1
R1=(E-Eo)/Io*10^3;
Er=E;//diode reverse voltage
// forward current
If=(E-VF)/R1*10^3;
printf('\nR1=%dohm\ndiode reverse voltage=%dv\nforward current=%.1fmA',R1,Er,If)
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