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clear//
//Variables
V = 25.0 //Source voltage (in volts)
R1 = 100.0 //Resistance (in ohm)
R2 = 75.0 //Resistance (in ohm)
R3 = 50.0 //Resistance (in ohm)
R4 = 25.0 //Resistance (in ohm)
RL = 250.0 //Load resistance (in ohm)
//Calculation
I = V / (R1 + R2 + R3) //Series curren (in Ampere)
VR2 = I * R2 //Voltage drop across R2
VOC = VR2 //Open circuit voltage (in volts)
Vth = VOC //Thevenin's equivalent voltage (in volts)
Rth = R4 + R2*(R1 + R3)/(R1 + R2 + R3) //Thevenin's equivalent resistance (in ohm)
IL = Vth/(Rth + RL)
//Result
printf("\n Thevenins equivalent voltage is %0.3f V. and resistance in %0.3f ohm.",Vth,Rth)
printf("\n Current through load resistance is %0.3f A.",IL)
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