What is electricity? How is it created and what makes it useful?
- Electricity is a flow of charge.
- The flow of moving electrons is known as the electric current.
- Voltage is the amount of energy the electrons have at a given point.
- Potential difference is the difference in voltage between two points.
Electricity is a flow of charge either created by nature or man.
It's potentially dangerous but extremely useful.
Electricity occurs at an atomic level.
Protons have a positive charge, while electrons are negative.
Protons = positive charge
Electrons = negative charge
Generally, electricity involves only electrons.
In an electrical conductor protons are held together in the nuclei ...
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