Lesson: Chapter 10 — Power and energy in electrical appliances

Wiring and safety 2 of 5 Reset answers

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Question 2

Why must a switch be fitted in the live wire?

A So the lamp circuit is safe to touch when switched off B So the lamp is brighter C So the meter reads correctly D To save cable

The right answer is the one marked above.

So the lamp circuit is safe to touch when switched off. With the switch in the neutral, the lamp would stay at 230 V even when off.

Answer the question to continue.