MCQ
Magnetic force required to demagnetize the material:
- ARetainity
- ✓Coercivity
- CEnergy loss
- DHysteresis
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'.
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
$(A)$ decreasing the number of turns
$(B)$ increasing the magnetic field
$(C)$ decreasing the area of the coil
$(D)$ decreasing the torsional constant of the spring
Choose the most appropriate answer from the options given below.