Lesson 1: What Is Electricity?
Completion requirements
Lesson 1: What Is Electricity?
What Is Electricity?
According to the Miriam Webster dictionary, electricity is "a form of energy, that is carried through wires, and is used to operate machines, lights and sometimes even cars." It's very important to work safely near or with electricity. All electrical systems have the potential to cause harm. Something as simple as changing a light bulb, without unplugging the lamp, can be hazardous; coming in contact with the energized or "live" part of the socket, could kill a person.
In the video on the introduction page, you learned how an electric current can not exist without an unbroken path to and from the conductor.
You also learned that electricity will find the easiest path from the power source to the conductor and back to the power source; this will create an electrical circuit. Conductors allow electricity to flow through them. Most metals are conductors.
The human body is also a conductor. People get hurt when they become part of the electrical circuit.
In the video on the introduction page, you learned how an electric current can not exist without an unbroken path to and from the conductor.
You also learned that electricity will find the easiest path from the power source to the conductor and back to the power source; this will create an electrical circuit. Conductors allow electricity to flow through them. Most metals are conductors.
The human body is also a conductor. People get hurt when they become part of the electrical circuit.
Watch this video on Electrical Hazardous Awareness, presented by Enmax.