Fuses and Earthing

HideShow resource information
  • Created by: Abbie
  • Created on: 24-01-12 21:41

Fuses and Earthing

Mains cables have three wires:

Live wire to supply alternates at a high voltage

Neutral wire is always at 0V

Earth wire for safety

A fuse is normally placed in a circuit to prevent surges of current in electrical circuits and electric shocks.

If the current in the circuit gets too big the fuse wire heats up and the fuse blows, breaking the…


No comments have yet been made

Similar Physics resources:

See all Physics resources »See all Electricity resources »