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STD 12 -6. Electromagnetic induction — JEE STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceJEESTD 12 -6. Electromagnetic induction4 Marks
MCQ
In transformer, core is made of soft iron to reduce
  • ✓
    Hysteresis losses
  • B
    Eddy current losses
  • C
    Force opposing electric current
  • D
    None of the above
✓

Answer

Correct option: A.
Hysteresis losses
a
(a) There may be energy losses due to hysteresis loss. Soft magnetic materials have low hysteresis loss hence to reduce the hysteresis losses, soft iron core is used in transformer.

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