MCQ
Which of the following, the most suitable material for making permanent magnet is
- ✓Steel
- BSoft iron
- CCopper
- DNickel
✓
Answer
Correct option: A.
Steel
a
Steel is the most suitable material for making a permanent magnet because it has high retentivity and high coercivity. Steel remains magnetized for a long time even after an external magnetic field is removed, and it needs a lot of energy to demagnetize.
Steel is the most suitable material for making a permanent magnet because it has high retentivity and high coercivity. Steel remains magnetized for a long time even after an external magnetic field is removed, and it needs a lot of energy to demagnetize.
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