If I bring a magnet close to a copper bar, there will be no attractive or repulsive force. Similarly, if I bring a magnet close to a copper electromagnet, still there is no attractive or repulsive force.So can't we say that the magnetism of regular copper and a copper electromagnet the same ?If no, then why? What difference is there between regular copper and a copper electromagnet? How does copper get changed if electricity passes through it?

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If I bring a magnet close to a copper bar, there will be no attractive or repulsive force. Similarly, if I bring a magnet close to a copper electromagnet, still there is no attractive or repulsive force.So can&#039;t we say that the magnetism of regular copper and a copper electromagnet the same ?If no, then why? What difference is there between regular copper and a copper electromagnet? How does copper get changed if electricity passes through it?

Simekr7 · Accepted Answer

Yes, the magnetism of the copper in the regular copper and the copper electromagnet are the same.The magnetic force of a copper electromagnet comes not from the copper, but from the electrons flowing through the copper. Currents produce magnetic forces. That&#039;s why it&#039;s called an electromagnet, you need electricity to produce a magnetic force.

Silimbuga92 · Accepted Answer

&quot;If I bring a magnet close to a copper bar, there will be no attractive or repulsive force.&quot;This assertion it’s not true, because all the materials have magnetic properties. The principal phenomenon present in copper is the so-called diamagnetism and consists of a macroscopic small repulsion. This magnetic property is present in every material, but it’s not always visible because of preponderance of other magnetic phenomena like paramagnetism, ferromagnetism.

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