In a dc motor, energy conversion would not have been possible but for
A. input energy from the supply.
B. production of back emf in the armature.
C. use of commutator.
D. rotation of the machine.
Answer:B
In a dc motor, energy conversion would not have been possible but for
A. input energy from the supply. B. production of back emf in the armature. C. use of commutator. D. rotation of the machine.