Question:
Core of electromagnets are made of materials which have the properties
Core of electromagnets are made of materials which have the properties
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Soft iron is preferred for electromagnets due to its high magnetic permeability and low retentivity.
Updated On: May 12, 2025
- Low permeability and high retentivity
- High permeability and low retentivity
- High permeability and high retentivity
- Low permeability and low retentivity
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The Correct Option is B
Solution and Explanation
For electromagnets, the core material should allow magnetic field lines to pass through it easily and should not retain magnetism after the current is switched off.
Hence, it must have:
- High permeability → to allow strong magnetic field formation.
- Low retentivity → to lose magnetism quickly when current is off.
This is why soft iron is commonly used in electromagnets.
Hence, it must have:
- High permeability → to allow strong magnetic field formation.
- Low retentivity → to lose magnetism quickly when current is off.
This is why soft iron is commonly used in electromagnets.
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