Review:
Permanent Magnets
overall review score: 4.5
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score is between 0 and 5
Permanent magnets are materials that generate a magnetic field without needing an external magnetic field to maintain it.
Key Features
- Retains its magnetism for a long period
- Does not require an external power source
- Used in various applications like electric motors, generators, MRI machines, etc.
Pros
- Long-lasting magnetism
- Versatile applications
- Energy-efficient
Cons
- Can be difficult to demagnetize or change polarity
- Can be expensive