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Problem: Permanent magnets are made from?A. paramagnetic materialsB. diamagnetic materialsC. ferromagnetic materialsD. dielectric materials

FREE Expert Solution

For option A, paramagnetic materials are weakly attracted when magnetic field is externally applied. This cannot make permanent magnets.

For option B, diamagnetic materials are repelled by magnetic field. The induced magnetic field is in the direction opposite to the repulsive force. This cannot produce permanent magnet that requires strong attraction to the magnetic field.

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Problem Details

Permanent magnets are made from?

A. paramagnetic materials

B. diamagnetic materials

C. ferromagnetic materials

D. dielectric materials

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