engineering recuitment PGCIL Diploma Trainee Mock Test 2024 Electrical Machines DC Motor DC Motor Speed Control
Identify the false statement:
1
Speed of the DC motor can be controlled by the variation of angle of brush shift
2
Speed of the DC motor can be controlled by the variation of armature voltage
3
Speed of the DC motor can be controlled by the variation of armature circuit resistance
4
Speed of the DC motor can be controlled by the variation of field current