AE-JE Foundation EE : Electrical machine Quiz - 11

Each of the following statements regarding a shaded pole motor is true except:

The magnitude of AT required to establish a given value of flux in the air gap will be much greater than that required for Iron part of a magnetic circuit, because:

The no load primary current I₀ is about ____ of full load primary current of a transformer.

If static voltage of a squirrel cage induction motor is reduced to 50 percent of its rated value, torque developed is reduced by how many percentage of its full load value?

In a synchronous motor hunting takes place

The rotor slots, in an induction motor, are usually not quite parallel to the shaft because it

The change of D.C. excitation of a synchronous motor changes

With respect to synchronous machines which of the following is true?

Which one of the following statement is true regarding the diverter used in field flux control?

The under-excited synchronous motor takes______.