Physics > 2004 > 48
JAMB UTME
Electrical appliances in homes are normally earthed so that
A.
both the a.c. and d.c. sources can be used.
B.
a person touching the appliances is safe from electric shock.
C.
the appliances are maintained at a higher p.d. than the earth.
D.
the appliances are maintained at a lower p.d. than the earth.
Answer: B
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