O-LevelPhysicsElectricity5054/12 · Oct/Nov 2018 · Q331 Mark
In a lighting circuit, the switch is placed in the live wire. Why is this?
Alamp in the circuit can be isolated from the supply.
BThe fuse is in the neutral wire.
CThe switch does not work in the neutral wire.
DToo much current flows in the earth wire.
✓ Correct answer
A: lamp in the circuit can be isolated from the supply.
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