Physics
Out of the two given cases of wiring of a house, which one is relatively safer ?
(a) House A ⟶ Switch in neutral with earth connected.
(b) House B ⟶ Switch in live with no earth connected.
- Both are equally safe.
- Both are equally unsafe.
- House B is safer.
- House A is safer.
Household Circuits
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Answer
House B is safer.
Reason — A switch must always be connected in the live wire so that switching it off completely disconnects the appliance from the supply.
In House A, the switch is in the neutral wire, so the appliance remains connected to the live wire even when switched off, which is unsafe. Although earthing is important, proper placement of the switch in the live wire is more critical for preventing electric shock in this case.
Hence, House B is relatively safer than House A.
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