Electrical machine design

37. D.C. windings are

sometimes 2-layer type
never 2-layer type
windings are A. sometimes 2-layer type B. never 2-layer type C. always 2-layer type
none of the above

Detailed SolutionD.C. windings are

39. The change in flux linkages can be caused in which of the following ways ?

The flux is constant with respect to time and is stationary and the coil moves through it
The coil is stationary with respect to flux and the flux varies in magnitude with respect to time
Both the changes mentioned above occur together, i.e., the coil moves through a time vary-ing field
All of the above

Detailed SolutionThe change in flux linkages can be caused in which of the following ways ?

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