Definition of Electricity for Flashcards

36 cards   |   Total Attempts: 183
  

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Kilowatt-hour
Is the unit of electric energy on which electric companies base their bills.
Ohm's law
The law that presents the relationship between voltage, current, and resistance.
Power
Is the time rate of doing work
Power formula
Shows the rlationship between electric power, voltage, and current in a dc circuit.
Resistance
The opposition to the flow of electrons in a circuit
Watt
The basic unit of power
Watt-hour meter
A device that measures the electric energy in kilowatt-hours supplied by electric power companies to users
Circuit breaker
Safety device that opens a circuit when the current goes over the specified value
Electric shock
Physical reaction to nerves by an electric current
Fuse
Safety device as a switch
Ground
Electrical connection between surface and earth
Ground-fault circuit interrupter
Gives extra personal protection
Open circuit
The switch is open not closed
OSHA
Safety group
Short circuit
Cituation that occurs when two unintilated live wires make contact