DC Generators
In case of D.C. machine winding, number of commutator segments is equal to

Number of armature coils
Number of armature coil sides
Number of armature conductors
Number of armature turns

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DC Generators
In D.C. generators the polarity of the interpoles

Is the same as that of the main pole ahead
Is opposite to that of the main pole ahead
Is neutral as these poles do not play part in generating e.m.f.
Is the same as that of the immediately preceding pole

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