♡ 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 machine the sparking between ...
➣ The principle of dynamically induced EMF is ...
➣ the voltage regulation of a DC generator ...
➣ in a DC motor, energy conservation wound ...
➣ with the increase in speed of DC ...
➣ this is and motors are used for ...
➣ "A time varying flux causes an induced ...
➣ the EMF induced in a conductor rotating ...
➣ in case of DC motor, maximum mechanical ...
➣ the slight curvature at the lower end ...
❖ Take a qick MCQ Test on
➤ Communication Systems
➤ Microprocessors
➤ Electrical Power Generation and Economic Consideration
➤ Electrical Installation and Wiring
➤ Electrical Machine Design
➤ Control System
➤ Induction Machines
➤ Electrical Energy Utilisation and Electric Traction