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Why is the switch put in the live wire? - Physics

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Question

Why is the switch put in the live wire?

Short Answer
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Solution

It is put into the live wire to ensure that no current runs through the appliance when the switch is turned off. This ensures that the live and neutral wires of the appliance are at the same potential, so that it is safe to touch the live wire while doing repairs.

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Chapter 9: Household Circuits - EXERCISE - 9 (B) [Page 228]

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Selina Physics [English] Class 10 ICSE
Chapter 9 Household Circuits
EXERCISE - 9 (B) | Q 14. (b) | Page 228
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