Electricity Fundamentals Explained
Electricity is a fundamental part of nature. Everything, from water and air to rocks, plants and animals, is made up of minute particles called atoms. They are too small to see, even with the most powerful microscope. Atoms consist of even smaller particles called protons, neutrons and electrons. The nucleus of the atom contains protons, which have a positive charge, and neutrons, which have no charge. Electrons have a negative charge and orbit around the nucleus. An atom can be compared to a solar system, with the nucleus being the sun and the electrons being planets in orbit.
Electrons can be freed from their orbit by applying an external force, such as movement through a magnetic field, heat, friction, or a chemical reaction.
A free electron leaves a void, which can be filled by an electron forced out of its orbit from another atom. As free electrons move from one atom to another, an electron flow is produced. This electron flow is the basis of electricity.
The cliché, "opposites attract," is certainly true when dealing with electrical charges.
Charged bodies have an invisible electrical field around them. When two likecharged bodies are brought close together, they repel each other. When two unlike charged bodies are brought closer together, their electrical fields work to attract.
LIVE ONLINE ELECTRICAL TRAINING SCHEDULE
- Power Quality Analysis Training
- Substation Maintenance Training
- Lockout Tagout Training
- 2024 CE Code - Combined Course: Changes/Fundamentals and Calculations
- CE Code Calculations: Practical Applications and Advanced Techniques
- Power Factor Training
- High Voltage Safety Training
- 2024 CE Code - Changes and Fundamentals
- NFPA 70e Training
- Combined NFPA 70e LV Arc Flash And HV Electrical Safety
- Combined Power Quality Analysis And Power Factor Training
- Grounding and Bonding Training And The CE Code
- UPS and Battery System Design, Testing and Maintenance Training
- Medium Voltage Cable Testing Training
- Arc Flash Training - CSA Z462 Electrical Safety
- Protective Relay Training - Basic
- High Voltage Safety Training
- Grounding and Bonding and The NEC - Section 250
- NFPA 70b Training - Electrical Maintenance
- Solar PV System Design
- Fire Alarm Training
- NFPA 70e Training
- Combined CSA Z462 LV & HV Electrical Safety Training
- Arc Flash Training - CSA Z462 Electrical Safety
Electricity Questions Pages

Electrical Short Circuit - Causes, Detection, Solution
READ MORE

What Is Static Electricity?
READ MORE

What is Electric Load
READ MORE
Electricity Fundamentals Pages

Prospective Fault Current Meaning Explained
READ MORE

Types of Resistors
READ MORE

Watt’s Law - Power Triangle
READ MORE