12.
According to Fleming's right-hand rule for finding the direction of induced e.m.f., when middle finger points in the direction of induced e.m.f., forefinger will point in the direction of

13.
Following energized winding of a D.C. machine should not be opened as it would produce high inductive voltage which may be dangerous to personnel and may cause its own insulation failure.

14.
The essential condition for parallel operation of two D.C. generators is that they have

Read More Section(D.c. Generators)

Each Section contains maximum 70 questions. To get more questions visit other sections.