A house’s a.c. mains electricity system has three wires: live, neutral and earth.
(a(i))[1]
State what the live wire is for.
(a(ii))[1]
Explain the reason the neutral wire is needed.
(b(i))[2]
An electrical appliance is switched on and the current in the fuse rises above the rating of the fuse. State and explain what happens.
(b(ii))[2]
State and explain which of the three wires contains the fuse.
Worked solution & mark scheme
This 6-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Provides the mains e.m.f./voltage” …
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