Electrical Machines
The flux is maximum in the following part of a DC motor:

 pole core.
 under leading pole tip.
 under the interpole.
 under trailing pole tip.

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Electrical Machines
Due to magnetic saturation, the flux per pole in a DC machine without brush shift

 increases in generators but decreases in motor with load.
  decreases in both generators and the motors with load.
 decreases in generators and increases in motor with load.
 increases in both the generators and the motors with load.

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