Physics Practice Test – Electric Charges (Questions with Answers and Explanations)

Electrical appliances in homes are normally earthed in that _________ (JAMB 2004)

A. both a.c. and d.c. sources can be used
B. a person touching appliances ¡s 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

When a positively charged rod is brought nearer the cap of a positively charged electrocope, the leaves of the electroscope will _____ (JAMB 2010)

A. diverge    B. remain constant    C. be induced    D. converge

If an ebonite rod is rubbed with fur, it is true that ______ (JAMB 2020)

A. the fur will acquire positive charges while the rod will acquire negative charges
B. the fur will acquire negative charges while the rod wilt acquire positive charges
C. both the fur and the rod will acquire positive charges
D. both the fur and the rod will acquire negative charges