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Chapter Objectives
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After studying this chapter, you should be able to:

• Describe the magnetic field surrounding a magnet.

• Define the units of magnetic flux and flux density.

• Convert between magnetic units.

• Describe how an iron bar is magnetized by induction.

• Define the term relative permeability.

• Explain the difference between a bar magnet and an electromagnet.

• List the three classifications of magnetic materials.

• Explain the electrical and magnetic properties of ferrites.

• Describe the Hall effect.







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