Understanding Current Electricity
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Questions and Answers

What causes the spark and slight shock when you touch a metal doorknob after rubbing your shoes against the carpet?

  • The passage of electrons from your body to the metal knob (correct)
  • The transfer of protons from your body to the metal knob
  • The generation of heat from the friction between your shoes and the carpet
  • The creation of a magnetic field around the doorknob

    • How is lightning formed?

  • By the movement of protons from cloud to cloud
  • By the generation of heat in the clouds
  • By the charge created when water and ice rub together in the clouds (correct)
  • By the formation of a magnetic field in the atmosphere

    • What allows easy travel of electricity?

  • Conductors (correct)
  • Insulators
  • Magnets
  • Superconductors

    • Where does the electrical current come from when you turn on your lamp?

    <p>The power plant</p> Signup and view all the answers

    What is a power plant?

    <p>An establishment where turbines constantly generate electricity</p> Signup and view all the answers

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