Answer Posted / pallavi
The effect of magnetic field set up by armature current on
the distributon of flux under main poles of a generator.
The armature magnetic field has two effects (i) it
demagnetises or weakens the main flux and (ii)it cross-
magnetises or distors it. The first effect leads to
reduced generated voltage and the second to the sparking at
the brushes.
| Is This Answer Correct ? | 4 Yes | 3 No |
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