engineering recuitment PGCIL Junior Technician Trainee (Electrician) Mock Test 2023 Electrician and Wireman Electrical Machines DC Motors
The speed of a DC motor can be controlled by varying which of the following?
(A) Applied voltage
(B) Resistance of armature circuit
(C) Flux per pole
1
(A) and (C)
2
(B) and (C)
3
(A) and (B)
4
(A), (B), and (C)