Explain why an electromagnet is a temporary magnet and not a permanent magnet?
Question: Explain why an electromagnet is a temporary magnet and not a permanent magnet?
An electromagnet is a temporary magnet because its magnetic properties depend on the flow of electric current. When an electric current passes through a coil of wire wrapped around a core (usually iron), it generates a magnetic field, magnetizing the core. However, this magnetism exists only as long as the current flows; once the current is turned off, the magnetic field disappears, and the core loses its magnetism. This contrasts with permanent magnets, which maintain their magnetic properties without the need for an external power source.
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