ELECTRICAL &
ELECTRONICS PRINCIPLES
Lecture 1: Learning Material A
Lecturer: Ms. Zaeema Wajid
Email: zaeema.wajid@bic.edu.pk
1. LEARNING AIM A
 The
use of algebraic, trigonometric and statistical
mathematical methods to solve engineering
problems
 Analyzing
 Include
Electrical Problems
a full range of progression steps to indicate
what will be expected in the set assignment.
2. LEARNING AIM A CONTENT
A1. Algebra : The use of Transposition and Simplification In Solving
i.
Ohm’s Law and it’s Triangle
ii.
Coulomb's Law
iii. Kirchhoff's Law
iv. Mass, Density and Volume following transposition
 A2. Trigonometry: The use of Logarithms and Exponentials In
understanding
i.
Capacitor Charging/Discharging
 A3. Statistical Methods:
i.
Resistor value reading

2. LEARNING AIM A (A1)

Algebra: Transposition and Simplification
Example 1 Addition/Subtraction : x + 10 = 15
1.
Right hand side is 15 which is a constant number
2.
Left hand side has a constant 10 and a variable x
3.
We move/place/transpose constants to the one side and variables to the other
4.
When we move some constant or variable from right to left/left to side it changes its sign as
shown below
Solution:
x + 10 = 15
Step 1: Mention Constants and Variables
x= Variable and Constants= 10 and 15
Step 2: Move constant 10 to the left side. As we move 10 it will change sign from + to - . Subtract
15 and 10. you will get value of x
x = 15-10
x = 5 Answer
2. LEARNING AIM A (A1)
 Algebra:
Transposition and Simplification
Example 2 Addition/Subtraction :
2. LEARNING AIM A (A1)

Algebra: Transposition and Simplification
Example 3 Division/Multiplication:
2. LEARNING AIM A (A1)

Algebra: Transposition and Simplification
Example 4 Both Addition/Subtraction & Division/Multiplication:
2. LEARNING AIM A (A1)
Algebra: Transposition and Simplification in terms of Engineering
Example 5 : Ohm’s Law
1. Voltage is Directly Proportional to Current
V∝𝐈
2. Remove ∝ with equal = and a constant value
𝑽 = 𝑹𝑰
3. Use transposition to rearrange the above equation and get the required equation

2. LEARNING AIM A (A1)
 Algebra:
Transposition and Simplification in terms of Engineering
Example 6 : Coulomb's Law
2. LEARNING AIM A (A1)
 Algebra:
Transposition and Simplification in terms of Engineering
Example 7 : Kirchhoff's Law
2. LEARNING AIM A (A2)
 A2.
Logarithms and Exponentials
1. Logarithms Basics
2. LEARNING AIM A (A2)
 A2.
Logarithms and Exponentials
2. Some important values of Logs to remember:
1.
2.
3.
2. LEARNING AIM A (A2)
A2. Logarithms and Exponentials
3. Bases of Logs
2. LEARNING AIM A (A2)
A2. Logarithms and Exponentials
3. Laws of Logs
2. LEARNING AIM A (A2)
A2. Logarithms and Exponentials
1. Exponents
2. LEARNING AIM A (A2)
A2. Logarithms and Exponentials
2. Exponents Examples
2. LEARNING AIM A (A2)
A2. Logarithms and Exponentials
3. Capacitor Charging/Discharging
Note:
We will see Trigonometry and it’s
functions while studying AC
current.
2. LEARNING AIM A (A3)
 A3.
i.
Statistical Methods:
Resistor value reading
2. LEARNING AIM A (A3)
 A3.
i.
Statistical Methods:
Resistor value reading Example 1
2. LEARNING AIM A (A3)
 A3.
i.
Statistical Methods:
Resistor value reading Example 2
2. LEARNING AIM A
Tasks/Assignment
Note:
The related Tasks/Assignment of Learning
Aim A will be share on Friday 04/11/2022.
The deadline for submitting the Assignment
will be Monday 07/11/2022.