(a)[3]
Explain why the coil rotates in the direction indicated.
(b(i))[2]
Explain why this occurs.
(b(ii))[1]
Suggest one further way to increase the turning effect of the motor.
Physics 5054 · O Level · The d.c. motor
The d.c. motor — practice question
Fig. 7.1 shows part of a simple d.c. electric motor. The motor is linked to a battery, and the battery's positive terminal is connected to terminal A.
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