?
A D.C. series motor is that which
Answer & Solution
Correct Answer:
Option
A
A D.C. series motor is a type of direct current motor where the field winding is connected in series with the armature winding.
Because the same current flows through both the field and the armature, the field winding must be designed to carry full armature current.
To handle the high current, the field winding in a series motor is made of thick wire with fewer turns.
This design allows the winding to carry large current without overheating.
Other options are incorrect because:
Option B: D.C. series motors have high starting torque, not poor torque.
Option C: They should never be started without load, as they may accelerate to dangerously high speeds.
Option D: They do not have constant speed; speed varies greatly with load.
Correct Answer: Option A
Because the same current flows through both the field and the armature, the field winding must be designed to carry full armature current.
To handle the high current, the field winding in a series motor is made of thick wire with fewer turns.
This design allows the winding to carry large current without overheating.
Other options are incorrect because:
Option B: D.C. series motors have high starting torque, not poor torque.
Option C: They should never be started without load, as they may accelerate to dangerously high speeds.
Option D: They do not have constant speed; speed varies greatly with load.
Correct Answer: Option A
Join the Discussion
Login to post a comment or share your explanation.
Login