WHY IS SWITCH FOR ANY ELECTRICAL APPLIANCE FITTED IN LIVE WIRES ?

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Solution

The live wire is always at higher potential where as neutral wire is always at zero potential.

The switch must be placed in live wire to maintain the body of appliance to keep the body of the appliance at zero potential in the switch off position.

If the switch is kept in neutral wire, then the body is still kept at high potential even the switch is in off position. This may cause electrical shock by touching the appliance.

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