Question:
How does an electromagnet differ from a permanent magnet?
How does an electromagnet differ from a permanent magnet?
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Unlike permanent magnets, electromagnets can be switched on or off and have adjustable strength.
Updated On: Nov 5, 2025
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Solution and Explanation
An electromagnet produces a magnetic field only when an electric current flows through it, whereas a permanent magnet retains its magnetism indefinitely. Additionally, the strength of an electromagnet can be controlled, but a permanent magnet has a fixed strength.
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