Electrical appliances in homes are normally earthed so that

Physics

JAMB 2018

A. a person touching the appliances is safe from electric shock
B. both the a.c. and d.c. sources can be used
C. the appliances are maintained at a higher pd than the earth
D. the appliances are maintained at a lower pd than the earth

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Correct Answer: Option A

Explanation

Earthing keeps the metal body of an appliance at earth potential (0 V). If a live wire touches the casing, current flows to the ground, preventing electric shock.

There is an explanation video available below.

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Electrical appliances in homes are normally earthed so that

Correct Answer: Option A

Explanation

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