♡ 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 👍 :3.4K
Share :
Copy ☍
✒ To discuss this topic
Comment
✕ Cancel
➤ Post Comment
❖ Related Questions
➣ the series field of a short shunt ...
➣ the coil span ...
➣ speed of a DC motor is ...
➣ in a DC motor, the shaft torque ...
➣ for a linear electromagnetic circuit, the following ...
➣ which of the following is not a ...
➣ in a DC machine, the space waveform ...
➣ the teeth in the armature of a ...
➣ when electric train is moving towards a ...
➣ in a drum type DC armature winding ...
❖ Take a qick MCQ Test on
➤ Electrical and Electronic Instrumentation
➤ DC Basics and Networks
➤ Electrical Energy Utilisation and Electric Traction
➤ Signals and Systems
➤ Electrical Machine Design
➤ Electromagnetic Field Theory
➤ Digital Electronics
➤ AC Basics and Networks