Question

The magnetic field of the coil and the permanent magnet​

Answer 1

A permanent magnet is an object made from a material that is magnetized and creates its own persistent magnetic field. ... Often an electromagnet is wrapped around a core of ferromagnetic material like steel, which enhances the magnetic field produced by the coil.

Answer 2

A permanent magnet is an object made from a material that is magnetized and creates its own persistent magnetic field. ... Often an electromagnet is wrapped around a core of ferromagnetic material like steel, which enhances the magnetic field produced by the coil.

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