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612

Q:

A 40kVA transformer has core loss of 400 W & full load copper loss of 800 W. The proportion of full load at maximum efficiency is -

  • 1
    50%
  • 2
    62.3%
  • 3
    70.7%
  • 4
    100%
  • Show Answer
  • Workspace

Answer : 3. "70.7%"

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