Question : Which of the following elements is highly effective for making a permanent magnet?
Option 1: Zinc
Option 2: Aluminium
Option 3: Copper
Option 4: Steel
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Correct Answer: Steel
Solution : The correct answer is steel .
Steel is the most ferromagnetic material from the above options. It can stay as a magnet for a longer period even after removing it from a magnetic field. There are two types of permanent magnets, hard magnets & soft magnets. Soft magnets lose their magnetism very quickly but hard magnets magnetise for a long period.
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