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Exploring Electricity and Magnetism: A Guide to Generators and Transformers

Learn about electromagnetic induction, direct and alternating current, generators, turbines, and transformers. Discover how motion in a magnetic field can transform mechanical energy into electrical energy. Explore the devices responsible for transmitting electrical energy and powering various technology.

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Exploring Electricity and Magnetism: A Guide to Generators and Transformers

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  1. Electricity from Magnetism p.736

  2. Electromagnetic Induction • An electric current is induced in a conductor when the conductor moves through a magnetic field.

  3. Direct Current • A current consisting of charges that flow in one direction only.

  4. Alternating Current • Charges that move back and forth in a circuit as a result of a wire in a magnetic field being moved up and down repeatedly.

  5. Generators • Devices that transform mechanical energy into electrical energy. • Uses motion in a magnetic field to produce an electric current. • Can be AC or DC.

  6. Turbine • A large circular device made up of many blades that spin, generating electrical current.

  7. Transformers • A device that increases or decreases voltage. • Used to transmit electrical energy from generating plants. • Can be used in florescent lights, TVs, and X-ray machines.

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