How Do Earth Wires Work Flashcards
1
Q
How do earth wires work
A
The case is electrified due to the damaged live wire but the electricity flows through the earth wire instead as it has a lower resistance.
As the electricity flows through, the current increases due to the resistance, which causes the fuse wire to melt.
This opens the circuit, preventing electrocution/fire and stops the flow of electricity. (Eg the washing machine stops working)
