WAEC Physics 2020 Objective — Question 40

Question 40 of 50 from the West African Examinations Council (WAEC) Physics 2020 Objective paper, with the correct answer and a full explanation.

An a.c. generator can be converted to a d.c. electric motor by replacing the

A. A. slip rings with a split ring and connecting a batteryCorrect
B. B. split ring with slip rings and connecting a battery
C. C. a.c. with d.c. source and connecting slip rings
D. D. a.c. source and connecting split rings

Explanation

An a.c. generator can be converted to a d.c. electric motor by replacing the slip rings in a.c. generators with a split ring (commutator) and connecting a battery.

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