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

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

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Electrical Machines
With the increase in speed of a DC motor

 back emf increases but line current falls.
 back emf falls and line current increases.
 both back emf as well as line current increase.
 both back emf as well as line current fall.

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