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5 Written questions

5 Multiple choice questions

  1. the force that causes magnets to pull on objects that are made of certain metals, such as iron
  2. A device that can increase or decrease the voltage of an alternating current.
  3. a machine that changes mechanical energy into electric power
  4. the lines of force surrounding a permanent magnet or a moving charged particle
  5. Electrical current that flows in only one direction through a wire

5 True/False questions

  1. alternating currentcurrent in which electrons constantly change direction at a regular rate

          

  2. galvanometera device used to measure electrical current.

          

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

          

  4. magnetic domainsA group of atoms whose magnetic fields are aligned

          

  5. electromagneta device that contains a rotating electromagnet that changes electrical energy to mechanical energy

          

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