♡ 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 👍 :3.5K
Share :
Copy ☍
✒ To discuss this topic
Comment
✕ Cancel
➤ Post Comment
❖ Related Questions
➣ in a DC motor, the shaft torque ...
➣ the series field of a short shunt ...
➣ in comparison to saint and compound motors, ...
➣ stray losses are sum of ...
➣ in a DC machine the sparking between ...
➣ an ideal DC generator has a regulation ...
➣ in a DC machine, fractional pitch winding ...
➣ in a DC machine armature winding, the ...
➣ the commutator pitch for simplex wave winding ...
➣ the commutator pitch for simplex lap winding ...
❖ Take a qick MCQ Test on
➤ DC Basics and Networks
➤ Communication Systems
➤ Miscellaneous
➤ AC Basics and Networks
➤ Analog Electronics
➤ Electrical Installation and Wiring
➤ Electromagnetic Field Theory
➤ Digital Electronics