MCQ
Magnetic force required to demagnetize the material:
- ARetainity
- ✓Coercivity
- CEnergy loss
- DHysteresis
✓
Answer
Correct option: B.
Coercivity
For a ferromagnetic substance, coercivity is the intensity of the magnetic field that need to be applied to reduce the magnetization to zero when the sample's magnetization reaches saturation.
It is 'Intensity of the magnetic field' rather than 'Magnetic force'.
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