Which one of the following kinds of materials has the highest permeability? A. A diamagnetic material B. A ferromagnetic material C. A paramagnetic material D. All of the above E. None of the above

The correct answer is B. A ferromagnetic material has the highest permeability.

Diamagnetic materials are slightly repelled by a magnetic field. Paramagnetic materials are slightly attracted to a magnetic field. Ferromagnetic materials are strongly attracted to a magnetic field.

The permeability of a material is a measure of how easily a magnetic field can be established in the material. The permeability of a ferromagnetic material

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