Hysteresis Loss Objective Questions and Answers


6.  The area of his hysteresis loss is a measure of


   A. Permittivity

   B. Permeance

   C. Energy loss per cycle

   D. Magnetic flux


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C. Energy loss per cycle

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7.  In order to minimise hysteresis loss, the magnetic material should have


   A. High resistivity

   B. Low hysteresis co-efficient

   C. Large B - H loop area

   D. High retentivity


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B. Low hysteresis co-efficient

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8.  Hysteresis loss least depends on


   A. Volume of material

   B. Frequency

   C. Steinmetz co-efficient of material

   D. Ambient temperature


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D. Ambient temperature

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9.  The hysteresis loss is caused by


   A. Structural non-homogeneity

   B. Work required for the magnetising the material

   C. Potential work function

   D. None of the above


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B. Work required for the magnetising the material

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10.  According to Steinmetz hysteresis law, hysteresis loss in a material is proportional to


   A. B 3.6

   B. B 1.6

   C. B 1.2

   D. B 2.6


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B. B 1.6

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