Electrical Machines
Two DC generators having equal open-circuit emfs but slight different load characteristics are operating in parallel, then

  the machine will share load equally.
  the machine with more drooping characteristic will supply less load.
None of these
 the machine with more drooping characteristic will supply more load.

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Electrical Machines
In a dc generator operating on load with its brushes on the geometrical neutral axis (GNA), the magnetic neutral axis (MNA) is shifted in the direction of rotation. Now, if the brushes are given a lead of 90° (electrical), then the MNA will

 shift forward by 90°
 shift forward by less than 90°
 coincide with the GNA
 shift forward by more than 90°

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