Concepts Of Physics MCQ Edition [Volume 2]
- Exam
- Concepts Of Physics MCQ Edition [Volume 2]
- Subject
- Physics
- Chapter
- Magnetic Properties of Matter
Concepts Of Physics MCQ Edition [Volume 2] · Physics · Magnetic Properties of Matter
When a ferromagnetic material is subjected to an external magnetic...
When a ferromagnetic material is subjected to an external magnetic field, its magnetic domains
Options
- Aexpand in size
- Bshrink in size
- Care independent of the field
- Dmay either expand or shrink in size
Correct answer
D. may either expand or shrink in size
Step-by-step solution
When a ferromagnetic material is placed in an external magnetic field, the domains whose magnetic moments are aligned parallel or at a small angle to the direction of the external field expand in size.
Conversely, the domains whose magnetic moments are aligned opposite or at a large angle to the external field shrink in size.
Therefore, the magnetic domains may either expand or shrink in size depending on their orientation relative to the applied magnetic field.
Conversely, the domains whose magnetic moments are aligned opposite or at a large angle to the external field shrink in size.
Therefore, the magnetic domains may either expand or shrink in size depending on their orientation relative to the applied magnetic field.