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Mr. Dubey • 100.64K Points
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Q. Mark the wrong option. Which of the following cause and effect behaviour in speed control is correct when field resistance is increased.

  • (A) decrease in flux
  • (B) increase in armature current
  • (C) increase in emf
  • (D) decrease in speed
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Explanation by: Mr. Dubey
when field resistance is increased, emf actually decreases, not increases due to fall in flux.

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