MAINS ELECTRICITY
1 mark · NormalWhat is the function of the live wire in a domestic mains circuit?
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It provides the path along which electrical energy from the power station travels to the appliance.
Also accept: Carries electrical energy to the appliance; Provides voltage/current from supply to appliance
Common mistakes: Completes the circuit (which is the neutral wire's role)
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Marking points
B1 · 1 mark · States the function of the live wire as carrying/providing electrical energy from the supply to the appliance.
Worked solution
The live wire carries electrical energy from the power station to the appliance.