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Question 22 of 58 in Mains Electricity

Electrical power

1 mark · Easy

Explain why house wiring is designed to have low resistance.

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To prevent wires becoming hot or wasting energy; allows current to pass easily.

Also accept: So wires do not get hot; To reduce energy loss as heat; So current can pass easily

Common mistakes: So current does not flow; It works better

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Marking points

B1 · 1 mark · Award for correct reason: avoids heating/wasting energy/allows current to flow easily.

Worked solution

House wiring is designed with low resistance so that the wires do not heat up and energy is not wasted.

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PHYSICS question: Electrical power | SubjectCover