(a(i))[1]
The current in the live wire in the cable is $13\,\text{A}$. State the magnitude of the current in the neutral wire in the cable.
(a(ii))[1]
State the magnitude of the current in the earth wire in the cable.
(b(i))[3]
The insulation on the mains cable is now damaged and, as the washing machine vibrates, the live wire touches the metal casing. Explain how the earth wire and the fuse together stop any further damage.
(b(ii))[2]
Explain why the fuse is connected into the live wire.