NEET Physics Magnetic Properties of Materials MCQ Question
Consider a diagram showing a ferromagnetic rod being magnetized by placing it in a solenoid with current passing through it. What key property of the material is crucial for selecting it as a permanent magnet in this process?
High retentivity
Low permeability
High coercivity
Low magnetic dip
Correct Answer
Detailed Explanation
For a material to be suitable as a permanent magnet, it should have high retentivity, ensuring it retains a significant amount of magnetization after the external magnetic field is removed.
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