Electrical Machines
If the field winding connection of DC shunt motor is changed

 motor will not run.
  It will run in opposite direction.
 motor will become slow.
 It will run in same direction.

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Electrical Machines
The result of slip test on a 3-phase, 20 KVA, 400 V, 50 Hz connected salient pole alternator is given below- Phase value: Vmax = 100 V, Vmin = 96 V, Imax = 10 A and I min = 7 A. The direct and quadranature axis reactances are respectively

 14.28 and 9.60 Ω.
 8.248 and 5.54 Ω.
 8.248 and 9.60 Ω.
  14.28 and 5.54 Ω.

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