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CGP EDU Academic Team
Published on: September 12, 2026
In the hysteresis cycle, the value of H needed to make the intensity of magnetisation zero is called
Text Solution
Verified by ExpertsThe correct answer is:
B
In the hysteresis cycle, when a magnetic material is subjected to an external magnetic field, it becomes magnetized. However, once the external field is removed, the material does not return to its original state immediately and retains some magnetization. The strength of the external magnetic field (H) required to bring the magnetization back to zero is referred to as coercive force.
- Step 1: Understand that the hysteresis loop describes the relationship between magnetic induction and magnetizing force.
- Step 2: Recognize that retentivity is the ability of a magnetic material to retain magnetization.
- Step 3: Identify that coercive force is specifically defined as the value of H needed to reduce the magnetization to zero after magnetization.
- Step 4: Eliminate Lorentz force, which is unrelated to the hysteresis properties of magnetic materials.
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