Which of the following D.C. generators will be in a position to build up without any residual magnetism in the poles?

Related Mcqs:

In a four-pole D.C. machine____________?

A. all the four poles are north poles B. alternate poles are north and south C. all the four poles are south poles D. two north poles follow two south poles...

The resistance of armature winding depends on

A. length of conductor B. cross-sectional area of the conductor C. number of conductors D. all of the above...

In D.C. generators, the brushes on commutator remain in contact with conductors which_________________?

A. lie under south pole B. lie under north pole C. lie under interpolar region D. are farthest from the poles...

In a D.C. generator in case the resistance of the field winding is increased, then output voltage will____________?

A. increase B. decrease C. remain unaffected D. fluctuate heavily...

In a D.C. generator the magnetic neutral axis coincides with the geometrical neutral axis, when_______________?

A. there is no load on|he generator B. the generator runs on full load C. the generator runs on overload D. the generator runs on designed speed...