Single Choice

Which of the following statement related to hysteresis loop is incorrect?

AThe curve of B against H for a ferromagnetic material is called hysteresis loop
BThe area of B-H curve is a measure of power dissipated per cycle per unit area of the specimen
Correct Answer
CCoercitivity is a measure of the magnetic field required to destroy the residual magnetism of ferromagnetic material
DThe retentivity of a specimen is the measure of magnetic field remaining in the specimen when the magnetising field is removed

Solution

The hysteresis loop i.e. area of B-H curve is a measure of energy dissipated per cycle per unit volume of the specimen. It depends on the nature of magnetic material.

SIMILAR QUESTIONS

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