Magnets cannot be made from which of the following substances
Correct answer: C. Copper
- A. Iron
- B. Nickel
- C. Copper
- D. All of the above
Explanation
Magnets are typically made from materials that exhibit ferromagnetism, such as iron and nickel, because they have unpaired electrons that align to create a strong magnetic field. Copper, on the other hand, is diamagnetic and does not have the necessary magnetic properties to become a magnet. Therefore, the correct answer is Copper. The option 'All of the above' is incorrect because it includes iron and nickel, both of which can indeed form magnets.
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