Flashing the field of D.C. generator means:______________?
Correct answer: B. creating residual magnetism by a D.C. source
- A. neutralising residual magnetism
- B. creating residual magnetism by a D.C. source
- C. making the magnetic losses of forces parallel
- D. increasing flux density by adding extra turns of windings on poles
Explanation
Flashing the field means applying an external DC supply to the field winding so that residual magnetism is restored or strengthened. This enables the generator to build up its voltage.
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