To achieve sparkless commutation brushes of a D.C. generator are rockedm ahead so as to bring them

To achieve sparkless commutation brushes of a D.C. generator are rockedm ahead so as to bring them

A).  just ahead of magnetic neutral axis

B).  in magnetic neutral axis

C).  just behind the magnetic neutral axis

D).

---

Join Telegram Group

Answer This Question
Name:
Email:
Answer :
Sum of (3+5)
Submit:

Other Questions

1. The value of flux involved m the e.m.f. equation of a transformer is

2. High voltage transmission lines use

3. The ratio of exit pressure to inlet pressure of maximum mass flow rate per area of steam through a nozzle when steam is initially superheated is

4. The photo-electric effect occurs only when the incident light has more than a certain critical

5. In open loop system

6. Positive logic in a logic circuit is one in which

7. Which D.C. motor is preferred for elevators?

8. Which motor has the poorest speed control?

9. A steady-state condition is reached when

10. For any transfer function, the constant phase angle loci are