Electrical Engineering Principles KNEC Notes

Electrical Engineering Principles is offered for college students pursuing electrical engineering courses. Its purpose is to equip learners with the basic concepts of engineering science. Download free KNEC notes on topics as shown below:

Topics Covered

Direct Current Circuits

• Electrical quantities and their units
• Electrical circuits
• Electrical circuits laws and theorems
• Resistance of conductor of Wheatstone bridge
• Principle of operation of a potentiometer

Magnetism and Electromagnetism

• Terminologies
• Types of magnets
• Magnetic fields
• Magnetic circuits
• Electromagnetic induction
• Classification of magnetic and non-magnetic materials
• Verification of the existence of magnetic field

Introduction to Direct Current (DC) Generators and Motors

• DC Machines
• Separately excited generators
• Shunt would generators
• Series wound
• Compound wound
• Starting methods
• Voltage regulation
• Speed control
• Maintenance of DC machines

Alternating Current Circuits

• AC circuits
• Wave motions
• Amplitude
• Phase Angle
• Period
• Root mean square value
• Average value
• Frequency
• Identification of components of an AC generator
• Sine wave generation
• Experiment of power factor

Battery (Chemical Cells)

• Types of batters
• Construction
• Principles of operation

Electron Theory

• Atomic and molecular structure
• Semiconductor materials
• Intrinsic and extrinsic conduction
• Crystal structure of semiconductor
• Formation of P- and N-type semiconductor

Semiconductor Devices

• Construction and symbol of semiconductor devices
• Operation of semiconductor devices
• Characteristics of semiconductor devices
• Applications of semiconductor devices
• Identification of semiconductor devices
• Connection of semiconductor devices
• Tests on semiconductor components

Electronic Components

• Electronics Components

Power Rectification

• Methods of power rectification
• Smoothing
• Regulation
• Voltage multipliers
• Methods of power supply protection
• Voltage division and multiplication
• Construction of power supply regulators
• Tests and measurements