♡ Login
Home
Previous Papers
★
MCQs
Electrical Engineering
DC Machines
the dummy coils in DC machines are ...
Que.
the dummy coils in DC machines are useful to
A.
increase the efficiency
B.
improve the commutation
C.
reduce the cost of machine
D.
maintain mechanical balance of armature
Right Answer is :
✓ D. maintain mechanical balance of armature
⚑ Report
Views 👍 :3.2K
Share :
Copy ☍
✒ To discuss this topic
Comment
✕ Cancel
➤ Post Comment
❖ Related Questions
➣ in a DC motor, the shaft torque ...
➣ aluminium is not used as winding wire ...
➣ for both lap and wave winding, there ...
➣ when ADC communicative compound wound motor is ...
➣ the air gap between the yolk and ...
➣ in comparison to saint and compound motors, ...
➣ with the increase in the field excitation ...
➣ the reactance voltage is ...
➣ in DC machines, the air gap flux ...
➣ reluctance torque in rotating machines is present, ...
❖ Take a qick MCQ Test on
➤ DC Basics and Networks
➤ Electronic and Electrical Measurements and Instruments
➤ Electrical Engineering Material
➤ DC Machines
➤ Electrical Power Generation and Economic Consideration
➤ Electrical Machine Design
➤ Miscellaneous
➤ Digital Electronics