EE340 ELECTROMAGNETICS
LABORATORY MANUAL
Updated in 2006
Copyright © Electrical Engineering Department, KFUPM, Saudi Arabia.
Table of Contents
Title Page
Introduction to EE 340 Laboratory 3
Software Lab # 1: Vector Representation and Coordinate Systems using Software
Package: ‘CAEME’ 4
Software Lab # 2: Coordinate Systems and Conversion using ‘CAEME’ Software. 7
Exp # 1: Electrical Field and Potential inside the Parallel Plate Capacitor 9
Exp # 2: Capacitance and Inductance of Transmission Lines 13
Exp # 3: Simulation of Electric Field and Potential Inside Capacitors. 16
Exp # 4: Magnetic Field Outside a Straight Conductor. 19
Exp # 5: Magnetic Field of Coils. 23
Exp # 6: Magnetic Force on a Current Carrying Conductor. 26
Exp # 7: Magnetic Induction. 29
Exp # 8: E.M Wave Radiation and Propagation of a Horn Antenna. 33
Exp # 9: E.M Wave Transmission and Reflection. 38
Appendix A: Guidelines for Formal Report Writing 40
Appendix B: Problem Sessions 41
Problem Session 1 41
Problem Session 2 43
Problem Session 3 44
Introduction to EE 340 Laboratory
Laboratory Procedures and Report Writing

Smoking, food, beverages and mobile phones are not allowed.

Because of the limitations on experimental setups, no makeups will be allowed.

All equipment should be switched off upon completion of the experimental work. The workbench should be left as neat as possible, and all connection wires returned to their proper place.

Experiments will be carried out is groups of four students (maximum). Groups are expected to remain the same throughout the semester. Each individual in a group is expected to participate in performing the experimental procedures. Most experiments have several parts, so, students should alternate in doing these parts.
Experimental Results 
Each group should present their results to the lab instructor before moving to a new part of the experiment.

For each part of the experiment, the group should present the result in the form of a sketch. This way, a validation of the data taken is made if the sketch shows the expected characteristics.

All experimental data taken and all sketches made should be produced using the blank page included in each experiment handout.
Performance in Lab 
Both group performance and individual performance will be evaluated.

Group performance is based on (1) ability of the group to produce correct and accurate results and (2) ability of the group to independently carry out troubleshooting while conducting the experimental procedures.

Individual performance is based on (1) attendance on time (2) participation in carrying out the experiment and (3) answer to questions given by lab instructor upon inspection of the results.
Report Writing 
Each student is expected to produce his own report. Groups share experimental results only. Any copying of reports will be considered an act of cheating.

In writing the report a student is supposed to follow the formal report writing studied in ENGL214. A guideline for formal report writing is given in Appendix A.

Evaluation of the reports is based on the quality of the following (1) correct format (2) Error analysis (3) Presentation of results and (4) Discussion and answer to questions.

Use of computers in preparing report is highly encouraged.
Final Exam 
A combination of experimental and written exams will be given in the last week of classes.

Both exams will test the experimental knowledge acquired by the student throughout the semester regarding (1) equipment (2) measurement methods and procedures and (3) basic concepts.
Electrical Engineering Department
Software Lab # 1 VECTOR REPRESENTATION AND COORDINATE SYSTEMS USING SOFTWARE PACKAGE: ‘CAEME’
Objective:
To become familiar with basic coordinate systems, vector and scalar quantities using the software “CAEME”.
Equipment Required:
‘CAEME’ software. These are licensed software’s and cannot be copied.
Introduction:
The software ‘Computer Applications in Electromagnetics Education (CAEME)’, is a well known software for understanding and simulating basic EM problems. In this demonstration laboratory, CAEME software will be used to introduce the basic concept of coordinate systems, vector and scalar quantities. Ask your instructor to clarify all your conceptual problems. If required view the 1^{st} part of the software, titled “Vectors and Coordinate systems” several times before you take the class test.
Software navigation techniques: To see the popup navigation menu, scroll down the mouse pointer to the bottom of the CAEME screen.
Procedure:

Execute the software “CAEME”.

Click the top rectangle with title “Vectors and Coordinate systems”.

Then Click on the icon to enter the lesson.

Click on the “Introduction” icon

Click on the icon titled “Basic Concept on Coordinate Systems”. This part of the software will explain the basics or advantages of all the coordinate systems.

Next click on the “Scalar and vector” icon to learn about vector and scalar quantities.

Take the interactive practice quizzes.
Trial quiz: Answer the following questions based on the DEMO. Before you take the quiz, ask your instructor to clarify any confusion regarding any of the explained subjects.

Name three 3D coordinate systems and the independent variables use by the coordinate systems:
(a) _________________________________________________________
(b) _________________________________________________________
(c) _________________________________________________________

A Scalar quantity needs __________________________ to be specified

A Vector quantity needs __________________________ to be specified
For the following questions find the correct answer:

Outline the steps involved in defining a coordinate system.
(a) An origin and a vector are required in general
(b) Three points in the space are required
(c) An origin and three independent variables are required
(d) None of these

How do we define the base vectors?
(a) Perpendicular to the reference surfaces
(b) Parallel to the reference surfaces
(c) The base vectors are different for every coordinate system
(d) The vase vectors are always three.

How do we define the origin of a coordinate system?
(a) It is where two vectors intersect
(b) It is the point where the three reference surfaces intersect
(c) All the vectors point to it
(d) All the other answers are true.

How do we define the reference surfaces?
(a) As three planes
(b) As a sphere, a plane and a cone
(c) As a cylinder, a plane and a sphere
(d) As surfaces at constant values of the independent variables.

How do we define a vector in a coordinate system?
(a) An origin and a vector are required in general
(b) Three points in the space are required
(c) An origin and three independent variables are required
(d) None of these

Why is it necessary to define an origin to completely specify a vector?
(a) It is not necessary
(b) Well, everything has to have an origin
(c) Because the color of the vector is closely related to its origin
(d) Because the components along the base vectors only define a magnitude
and a direction.
Electrical Engineering Department
