Basic Circuit Analysis
This report is about an experiment that is done to verify Thevenin’s theorem and Norton’s theorem. The verification is done by first determining the resistance of a circuit of resistances by determining the nodal voltages and nodal currents using Partsim Software. The measured currents and voltages are the used to determine the equivalent resistance of the circuit that is the used to determine the Thevenin voltage, Thevenin resistance and also the Norton circuit.
Thevenin theorem states that it is possible to represent any linear power supply by using an ideal voltage source and single resistance that is connect ...view middle of the document...
The objective of this experiment was to establish the nodal voltage and the nodal currents in the given circuit using the Partsim software. From the measured nodal voltages and current, the Thevenin equivalent circuit and the Norton’s equivalent circuit were to be determined.
The circue.it shown below was designed in Partsim which is an online software. Once the circuit was draw, the value of the R5 was determined by the student number. The supply voltage was taken to be 12V.
The basic circuits from the software was the used to determine the nodal currents and nodal voltages. An additional resistor was added to the design so as to ease the process of measuring the nodal and voltage and nodal currents. Once the parameters were measured and noted, they were used to calculate the overall equivalent resistance for resistors that are connected as bridge. The calculated resistance was then used to calculate the equivalent Thevenin circuit and equivalent Norton circuits (Leach, 1976).
The source voltage was found to be 12V. A 1kΩ resistors was added to the design so that the nodal voltage and nodal current would be easily determined. The voltage at node R1 was found to be 10V. The results were summarised by the figure shown below.
The voltage at resistor R1 node was found to be 10V. The addition of the 1kΩ led drop in voltage from the supply. This shows that the voltage drop across resistor is 2V and the remaining 10 voltage is fed to the resistor network that is comprises of R1, R2, R3, R4, and R5 (Leach, 1976).
The voltage drop across resistor R5 is given by