Which of the following devices works on the principle of electromagnetic induction?
A.
Carbon microphone
B.
Electric heater
C.
Moving iron ammeter
D.
Simple d.c. motor
Answer: D
To see detailed solution to this question and thousands of other questions offline, download TestDriller SSCE. Practice rigorously for WASSCE, enjoy educational games, get chief examiners' reports, summary of WAEC literature books, compete with your peers, win prizes and more.