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Questions and Answers

Which device converts motion-based power or fuel-based power into electric power for use in an external circuit?

  • Generator (correct)
  • Electric motor
  • Fuel cell
  • Photovoltaic cell
  • Who invented the first electromagnetic generator?

  • Thomas Edison
  • Benjamin Franklin
  • Michael Faraday (correct)
  • Nikola Tesla
  • What is the reverse conversion of electrical energy into mechanical energy called?

  • Fuel cell
  • Photovoltaic cell
  • Generator
  • Electric motor (correct)
  • What are some sources of mechanical energy used in generators?

    <p>Internal combustion engines and wind turbines</p> Signup and view all the answers

    What do motors and generators have in common?

    <p>They both generate electricity from mechanical energy</p> Signup and view all the answers

    What are the two broad categories of electromagnetic generators?

    <p>Electromagnetic generators fall into one of two broad categories.</p> Signup and view all the answers

    When was the first electromagnetic generator invented and who invented it?

    <p>The first electromagnetic generator, the Faraday disk, was invented in 1831 by British scientist Michael Faraday.</p> Signup and view all the answers

    What are some examples of mechanical energy sources used in generators?

    <p>Sources of mechanical energy include steam turbines, gas turbines, water turbines, internal combustion engines, wind turbines, and even hand cranks.</p> Signup and view all the answers

    What are some alternative methods used in generators to generate electrical output?

    <p>In addition to electricity- and motion-based designs, photovoltaic and fuel cell powered generators use solar power and hydrogen-based fuels, respectively, to generate electrical output.</p> Signup and view all the answers

    What is the main purpose of generators in electrical grids?

    <p>Generators provide nearly all the power for electrical grids.</p> Signup and view all the answers

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