41.
Fleming's right-hand rule regarding direction of induced e.m.f., correlates

42.
Compensating windings are used in D.C. generators

43.
Flashing the field of D.C. generator means

45.
If a D.C. generator fails to build up the probable cause could not be

46.
D.C. generators are connected to the bus-bars or disconnected from them only under the floating condition

47.
Two generators are running in parallel. One of the generators may run as motor for which of the following reasons?

48.
The function of pole shoes in the case of D.C. machine is

50.
For the parallel operation of two or more D.C. compound generators, we should ensure that

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