Multiple choice

_______ used in hoisting cranes are very powerful and those used to remove iron filings accidentally getting into the eye are very weak.

  1. Permanent magnet

  2. Temporary magnet

  3. Bar magnet

  4. Electromagnet
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Electromagnets used in hoisting cranes are very powerful and those used to remove iron filings which accidentally get into the eye are very weak.

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