Short Note
The metal case of an electric appliance is earthed. Explain the reason.
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Solution
The metal case of an electrical appliance is earthed so that in any case of accidental contact of live wire with the metallic body of the appliance, the earthing would provide a safe and easy path for the electric charges to flow down to the earth which acts as very large sink. Thus, user is thereby protected from any fatal electric shock.
Concept: Current Electricity
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