JEE Main202124 Feb 2021Evening ShiftPhysicsMagnetic Properties of MatterActual
A soft ferromagnetic material is placed in an external magnetic field. The magnetic domains:
Options
- Ahave no relation with external magnetic field.
- Bdecrease in size and changes orientation.
- Cincrease in size but no change in orientation.
- Dmay increase or decrease in size and change its orientation.
Correct answer
D. may increase or decrease in size and change its orientation.
Step-by-step solution
Soft ferromagnetic materials are materials which can be easily magnetised and demagnetised by external magnetic field. When external field is applied, the domains experiences a net torque hence change its orientation.