♡ 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 👍 :3.6K
Share :
Copy ☍
✒ To discuss this topic
Comment
✕ Cancel
➤ Post Comment
❖ Related Questions
➣ the slight curvature at the lower end ...
➣ in case of conductively compensated DC series ...
➣ with the increase in the field excitation ...
➣ when the torque of DC series motor ...
➣ the purpose of providing dummy coils in ...
➣ the DC motor most suitable for applications ...
➣ the series field of a short shunt ...
➣ in a DC machine the sparking between ...
➣ stray losses are sum of ...
➣ the armature MMF waveform of a DC ...
❖ Take a qick MCQ Test on
➤ Digital Electronics
➤ Electrical Energy Utilisation and Electric Traction
➤ Basic Electronics Engineering
➤ Electrical Engineering Material
➤ AC Basics and Networks
➤ Induction Machines
➤ Control System
➤ Electrical Power Generation and Economic Consideration