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  • Which of the following would be most powerful electromagnet?
Multiple choice

Which of the following would be most powerful electromagnet?

  1. Air

  2. Copper

  3. Steel

  4. Soft iron

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Soft iron is a ferromagnetic material that is easily magnetized and demagnetized, making it ideal for creating strong temporary electromagnets. Steel retains magnetism, making it better for permanent magnets.

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