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clear//
//Case a.1:
//Variables
VT = 1.25
VS = 6.0 //Source Voltage (in volts)
RS = 2.0 //Resistance (in ohm)
//When RL is 2 ohm
RL = 2.0 //Load Resistance (in ohm)
//Calculation
RT = RS + RL //Total Resistance (in ohm)
I = VS / RT //Current in the Circuit (in Ampere)
VT1 = I * RL //Terminal Voltage (in volts)
//Result
printf("\n Terminal voltage when RL is 2 ohm : %0.3f V.",VT1)
//Case a.2:
//Variables
//When RL is 20 ohm
RL = 20.0 //Load Resistance (in ohm)
//Calculation
RT = RS + RL //Total Resistance (in ohm)
I = VS / RT //Current in the Circuit (in Ampere)
VT2 = I * RL //Terminal Voltage (in volts)
//Result
printf("\n Terminal voltage when RL is 20 ohm : %0.2f V.",VT)
printf("\n Variation in terminal voltage is %0.3f V.",(VT2-VT1)/VT2)
//Case b.1:
//Variables
RS = 100.0 //Resistance (in ohm)
//When RL is 10 kilo-ohm
RL = 10.0 * 10**3 //Load Resistance (in ohm)
//Calculation
RT = RS + RL //Total Resistance (in ohm)
I = VS / RT //Current in the circuit (in Ampere)
VT = I * RL //Terminal Voltage (in volts)
//Result
printf("\n Terminal voltage when RL is 100 kilo-ohm is: %0.2f V.",VT)
//Case b.2:
//Variables
//When RL is 100 kilo-ohm
RL = 100.0 * 10**3 //Load Resistance (in ohm)
//Calculation
RT = RS + RL //Total Resistance (in ohm)
I = VS / RT //Current in the circuit (in Ampere)
VT1 = I * RL //Terminal Voltage (in volts)
//Result
printf("\n Terminal voltage when RL is 100 kilo-ohm is : %0.3f V.",VT1)
printf("\n Variation in terminal voltage is %0.3f V.",(VT1-VT)/VT1)
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