Machine-translated by Google. Questions are authored in English.
Top

Discussion

Assertion: transformer cores are laminated. Reason: laminating reduces the hysteresis loss of the core material.

  • A.the assertion is false although the reason offered is a true statement in itself
  • B.the assertion is true but the reason given for it is false
  • C.both the assertion and the reason are true and the reason explains the assertion
  • D.both the assertion and the reason are true but the reason does not explain the assertion

Answer: B

Lamination reduces the eddy current loss, which depends on the area available to circulating currents. Hysteresis loss is a property of the material and its flux excursion and is quite unaffected by how the core is cut up.

No comment is present. Be the first to comment.
Loading…

Post your comment

Please log in or register to post a comment.