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clear//
//Variables
IZ1 = 20 //Reverse current (in milli-Ampere)
IZ2 = 30 //Reverse current (in milli-Ampere)
VZ1 = 5.6 //Zener voltage (in volts)
VZ2 = 5.65 //Zener voltage (in volts)
//Calculation
dIZ = IZ2 - IZ1 //Change in reverse current (in milli-Ampere)
dVZ = VZ2 - VZ1 //Change in zener voltage (in volts)
rZ = dVZ / (dIZ * 10**-3) //Resistance of device (in ohm)
//Result
printf("\n Resistance of the zener diode is %0.3f ohm.",rZ)
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