Electrical Machines
Which of the following represents the commutator pitch?

 Number of commutator segments between two successive coils.
 The distance between the staring of first coil and its next successive coil
 Number of conductors spanned by one coil at the front end of the armature.
 Number of conductors spanned by one coil at the back end of the armature.

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Electrical Machines
A 10 kW, 230 V, dc shunt machine has four terminals brought out through four leads. For this machine

 armature winding has thick leads whereas field winding has thin leads
 both the windings have thin leads
 armature winding has thin leads whereas field winding has thick leads
 both the windings have thick leads

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