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5 Written questions

5 Multiple choice questions

  1. a device that contains a rotating electromagnet that changes electrical energy to mechanical energy
  2. the lines of force surrounding a permanent magnet or a moving charged particle
  3. a device used to measure electrical current.
  4. temporary magnet made by passing an electric current through a wire coiled around an iron bar
  5. two ends of a magnet where the magnetic forces are strongest

5 True/False questions

  1. magnetic domainstwo ends of a magnet where the magnetic forces are strongest

          

  2. turbinea machine that changes mechanical energy into electric power

          

  3. commutatora machine that changes mechanical energy into electric power

          

  4. generatora machine that changes mechanical energy into electric power

          

  5. solenoidthe force that causes magnets to pull on objects that are made of certain metals, such as iron