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Electricity in the home

Terms in this set (11)

Alternating Current (AC)
Electric current in a circuit that repeatedly reverses its direction.
Direct Current (DC)
Electric current in a circuit that is in one direction only.
Earth wire
The wire in a mains cable used to connect the metal case of an appliance to earth.
Fuse
A fuse contains a thin wire that melts and cuts the current off if too much current passes through it.
Live wire
The mains wire that has a voltage that alternates in voltage (between +325 V and -325 V in Europe)
Neutral wire
The wire of a mains circuit that is earthed at the local substation so its potential is close to zero.
Oscilloscope
A device used to display the shape of an electrical wave.
Plugs
A plug has an insulates case and is used to connect the cable from an appliance to a socket.
Step-down transformers
Electrical device used to step-down the size of an alternating potential difference.
Step-up transformers
Electrical device used to step-up the size of an alternating potential difference.
Three-pin plug
A three-pin plug has a live pin, a neutral pin and an earth pin.
THIS SET IS OFTEN IN FOLDERS WITH...