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Electricity and Magnetism

Electricity and Magnetism. Section 4. Electricity and Magnetism. Quick Summary Hans Oersted discovered that the forces of magnetism and electricity are closely related. An electromagnet is a coil of wire wrapped around an iron core. The strength of an electromagnet can be changed.

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Electricity and Magnetism

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  1. Electricity and Magnetism Section 4

  2. Electricity and Magnetism • Quick Summary • Hans Oersted discovered that the forces of magnetism and electricity are closely related. • An electromagnet is a coil of wire wrapped around an iron core. • The strength of an electromagnet can be changed.

  3. Electricity and Magnetism • Vocabulary • Electromagnet

  4. Electricity and Magnetism • What are three ways to make an electromagnet more powerful? • What sequence of events will take place when a compass is located near a wire and an electric current flows through the wire? • How does a switch on an electromagnet work? • How is an electromagnet different from a magnet? • An electromagnet with 12 coils can pick up 4 thumbtacks. You want to make the electromagnet stronger by adding coils. Predict how many coils you need to pick up 5 thumbtacks.

  5. Electricity and Magnetism

  6. Electricity and Magnetism

  7. Electricity and Magnetism

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