Hard magnetic materials and soft magnetic materials
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Hard magnetic materials:
- Iron
- Tungsten
- Chromium
- Cobalt
Soft Magnetic Materials:
- Ferro fluid
- Ceramic magnets
- MU metal
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Answer:
MATERIALS WHICH RETAIN THEIR MAGNETISM AND ARE HARD TO DEMAGNETIZE ARE CALLED HARD MAGNETIC MATERIALS. THESE MATERIALS RETAIN THEIR MAGNETISM EVEN AFTER THE REMOVAL OF THE APPLIED MAGNETIC FIELD. WHEREAS SOFT MAGNETIC MATERIALS ARE EASY TO MAGNETIZE AND DEMAGNETIZE. THESE MATERIALS ARE USED FOR MAKING TEMPORARY MAGNETS.
Explanation:
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