JEE PHYSICS MCQ: MAGNETISM AND MATTER

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Which of the following statements is incorrect about hysteresis

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Correct option: C

The hysteresis loop area is independent of the thermal energy developed per unit volume of the material

Option C (The hysteresis loop area is independent of the thermal energy developed per unit volume of the material) is correct because the area of the hysteresis loop is directly proportional to the energy loss (thermal energy) per unit volume during each magnetization cycle.

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Curie temperature is the one above which A vibration magnetometer consists of two identical bar magnets placed one over the other such that they are perpendicular and bisect each other. The time period of oscillation in a horizontal magnetic field is

{2^{5/4}}

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\mu_{\mathrm{d}}, \mu_{\mathrm{p}}

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\mu_{\mathrm{f}}

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