Electrical Machines
A DC motor with armature resistance of 0.5 ohms connected directly to a 220 Volt supply. If the armature is stationary then the current flowing through the armature is

 250 A.
 340 A.
 440 A.
 570 A.

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Electrical Machines
Torque angle of a synchorous machine operating from a constant voltage bus is usually defined as the space angle between

 Rotor mmf wave and resultant flux density wave.
 Stator mmf wave and resultant flux density.
  Rotor mmf wave and stator mmf wave.
 Stator mmf wave and resultant mmf wave.

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