EEB241: Electrical Principles II

Credits 12
Type Core
Semester 2
Prerequisites EEB231
Lecturers Monageng Kgwadi, Ph.D.
Office: 248/234 Telephone: 355 4388
Email: kgwadim@ub.ac.bw

Mr. Kelebaone Tsamaase

Office: 248/218 Telephone: 355 4306
Email: tsamaasek@ub.ac.bw
Lecture, Tutorial and Lab Times Lecture:
Tuesdays 1600-1800Hrs venue -TBA
(252/04)
Thursdays 1600-1800Hrs venue
TBA (252/02)
Tutorials: (attend only one of these)
Monday, Wednesday, Friday 1100-
1200 Hrs, venue -252/08
Thursday 1200-1300 Hrs, venue -
252/04.
Labs: (attend only one of these)
Monday 08:00 – 10:00; 11:00-13.00
Tuesday 11:00 – 13:00
Wednesday 08:00 – 10:00
Thursday 08:00 – 10:00 &11:00 –
13:00
Friday 08:00 – 10:00; 11.00-13.00;
14.00-16.00

Course aims
The course aims to enable students to:
To enable students to understand, analyse, and apply alternating current circuit
principles to the solution of electrical engineering alternating current problems.
By the end of this course, students should be able to solve problems of
alternating current circuits.
Course synopsis
The course in the second of two courses that provide an introduction to
electrical engineering, in particular the principles of alternating current circuits.
The coverage includes network components, basic alternating current concepts,
basic network theorems, introduction to alternating current machines and
applications of semiconductor devices.

Course Learning Outcomes

On completion of the course students should be able to:
1. Apply alternating current principles, circuit laws and theorems to determine
voltage, current, power and energy in alternating current electrical circuits.
[ECSA ELO 2]
2. Explain construction features, and analyse performance of transformers. [ECSA
ELO 2]
3. Explain construction features, and analyse performance of alternating current
machines. [ECSA ELO 2]
 4. Carry out and report on experimental work [ECSA ELO 2, 4, 6]
Teaching and Learning Methods:
i. Lectures
ii. Tutorials
iii. Practical learning activities
iv. Library Search/Research
v. Independent work

Credits:
i. This course consists of 12 credits for the semester
ii. This is equivalent to 1 credit per week for the semester course
iii. 1 Credit equals 10 Notional Hours per week, which is generally the amount of
time spent on the course in a given week (i.e. 10 hours per week)
iv. The 10 Notional Hours consist of 3 contact hours and 7 hours for student
engagement/ activities per week in the course
v. The 7 Notional Hours provides for activities which the student is engaged in,
such as: Library searches, research, group work, assignment preparation,
tutorial attendance, Reading, excursions, own learning, etc.

Assessment:
Assessment in this course will include
Coursework 40%, Final examination 60% (2 hour paper). Students need to
meet a minimum of 50% in the CA to qualify to sit for the examination.
Coursework will comprise of three (3) pieces of practical work, two (2) written
assignments, and two (2) tests. The ratio of tests-to-practical work-to-
assignment shall be 4:3:1 as stipulated in the programme regulations.
Credit will be awarded if a student achieves a minimum mark of 50%
overall and also meets the ECSA outcomes assessment.
A valid medical certificate (or other) should be provided within two (2) weeks of
a missed assessment, or as soon as the student resumes duty.

Laboratory work:
Laboratory work is compulsory for this course and is designed to reinforce concepts
taught in class. There will be a minimum of three (3) labs in this course which are to
be completed in pairs (i.e. only two people should be working together at the lab and
on the report). The group will then submit a single pdf lab report online (via MS Teams
or Moodle) which should be written in technical/scientific reporting. The lab report will
be due a week after the scheduled lab period.

Proper technical lab reports should be submitted in pairs. A guideline for preparing lab
reports can be found at the link
https://www.monash.edu/learnhq/write-like-a-pro/annotated-assessment-samples/
engineering/engineering-lab-report

Plagiarized lab reports will be awarded a mark of zero (0).

Prescribed texts:
1. Edward Hughes and Smith; Electrical Technology, Longmans, ISBN 0 582 22696
1.
2. Knight S. A., Electrical and Electronic Principles 3, Newnes Butterworth-
Heinemann, 1992, ISBN 0 750601175
Plagiarism
Plagiarism is a serious instructional offense that will not be tolerated. It involves
passing off someone else’s original work as your own. Most cases of plagiarism can be
avoided by carefully citing sources for any ideas, statements, results etc. that are not
your own. Please refer to the section on instructional offenses in the Undergraduate
Calendar for additional information.

Important dates:
Assignment/quiz 1 : 28/02/25
Lab 1 : TBA
Test 1: 06/03/25
Lab 2 :
Assignment2: week 14-18 April
Test 2: 24/4/2025
 Course Content and Teaching Plan (Tentative) :

Wee
Date Topic Comments
k
Course description and content.
27-31 Circuit variables and circuit elements.
1 Definitions, time domain variables, frequency domain
Jan 2025
variables, Passive circuit elements in the frequency
domain, computation, measurement;
03 – 07 Voltage, current, impedance; Series, parallel and
2 Labs Start
Feb 2025 combination circuits; Phasors.

10-14 Alternating current circuit laws and theorems:

3
Feb 2025 Kirchoff’s laws; current and voltage divider rules;
Superposition;Thevenin’s theorem; Norton’s theorem;
17 – 21 Nodal voltage analysis; Mesh current analysis; Star-
4
Feb 2025 delta and delta-star transformations. Phasor analysis.
Quiz 1
Due
24-28Feb Resonance: Series resonant circuits, Parallel 28/02/25
5
2025 resonant circuits
Midnight
Moodle
Test 1
03 - 07
Power in single phase circuits: 06/03/202
6 March
Active, reactive, apparent power, energy,. 5
2025
252/02
Test 1:
10-14
7 March Voltage, current, power and energy; direct current
2025 circuit laws and theorems; Series and Parallel
networks.
17 March-21 March MID SEMESTER BREAK
24 – 28
8 March Power factor and power factor improvement
2025
Power in balanced three phase circuits:
31 March
Generation of three phase voltages; delta and star
9 -4 Apr connections
2025
.
10 7-11 Balanced three phase systems; line and phase
April voltage and current relationships.
 2025 The a operator;

14- 18 Three phase power measurements

Transformers: Assignment
11 April
Operating principle; equivalent circuit; no load, ideal, 2
2025
real,
21-25
Alternating current machines:
12 April Construction features: Motor and Generators (rotor,
2024 stator, prime mover); Transformers
Test 2
Test 2: (Thursday
21 April- 24th April)
Power factor and power factor correction; Balanced
12 25 April three phase system and Power in balanced three Venue: will
2025 phase circuits, Power measurements; Transformers; be
Alternating current machines, communica
ted
28 April- Alternating current machines: (continues
13
02 May
05-09
Last week of teaching (No assessments, Examinations
14 May
held (Revision)
2025
09 May Last day of Classes
2025
12-14 May 2025 - Reading week (No classes, Assessments,
Examinations held)

15 – 28 May 2025 FINAL EXAMINATIONS