LAB SHEET-ExPeriment 1

Electrotechnic Lab (SKEE 2742),FKE UTM Skudai

FACULTY OF ELECTRICAL ENGINEERINGReview :3Release Date : Feb 2013

Last Amendment :2011ProcedureNumber :PK-UTM

SUbiECt : ELECTRICAL ENGINEERING" LABORATORY

Subject Code : SKBE2742

ffiHIMFACULTY OF ELECTRICAL ENGINEERING

UNIVERSITI TEKNOLOGI MALAYSIASKUDAI CAMPUS

JOHOR

SKEE, 2742ELE CTROTECHNIC LABORATORY

(Experiment 1)

THEVENIN & SUPERPOSITIONTHEOREMS

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Approved by: Head of DePartment

Name:

Signature & Stamp: \.Ul-1

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Prepared by:]. PM. Dr. Azhar b. Khairuddin2. Dr. Ahmad Safawi b. Mokhtar

3. Dr. Md. Pauzi b. Abdullah

4. Dr. Mohd Hafiz b. Habibuddin

5. Dr. Dalila bt. Mat Said

6. Faridah bt. Hussin

7. Norzanah bt' Rosmin

signature . ".1n;" rfriki:#il*

Fakulti Kejuruteraan Elektril'

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LAB SHEET-Experiment IElectrotechnic Lab (SKEE 2742),FKE UTM Skudai

I. PRELIMINARY EXERCISE (10 marks)

Important Note: You are required to do this exercise BEFORE the lab session

i. Describe briefly the Superposition and Thevenin theorems by using an

example from your own circuit.

ii. For the circuit in Figure 1, by using Superposition theorem, calculate Il andPr at Rr: 10 C), 20 {r,30 C),40 O, 50 Q and 60 O.

iii. Repeat step ii by using Thevenin theorem.

iv. Perform the circuit analysis using PSPICE to validate your results.

v. Discuss briefly the irnportance of Thevenin and Superposition heorems itncircuit analysis.

Recommended Reference :

Alexander & Sadiku, oFundamental of Electric Circuit 4th edition' , McGraw Hill.

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Figure 1.

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LAB SHEET-ExPeriment IElectrotechnic Lab (SKEE 2742),FKE UTM Skudai

II. EXPERIMENT:

3.

a.

b.

c.

d.

'Thevenin and Superposition Theorems'

IMPORTANT: You need to complete the PRELIMENARY EXCERCISE before thelaboratory session.

1. Aim:

To solve circuit analysis problem by using Superposition theorem and Thevenin theorem.

2. Equipments provided :

DC power supply, ammeter, multimeter, decade resistance

Instructions :

Precaution:

i. Set the supply voltage value to the conect experimental value before connect

it to the circuit.ii. Make sure the multimeter or ammeters are connected at a right terminal.iii. Do not switch on the supply until the instructor checks all connections.

Based on the circuit in Figure 1, setup an experiment to measure the current and

voltage of the load for R;: 10 A,20 Q, 30 O, 40 C), 50 Q and 60 Q;

i. based on the original circuit.

ii. by using superposition theorem.

iii. by using Thevenin thborem.

Calculate the power absorbed by Rl from the measurements in step 2 a.

Compare and comment on the results of both theorems against the original circuit interms of voltage, current and power.

Discuss the advantages and disadvantages of each theorem.

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