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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. Electrical current that flows in only one direction through a wire
  3. a large wheel with blades that rotates and provides mechanical energy to a generator
  4. attached to the armature in a motor; changes the direction of the electric current
  5. the lines of force surrounding a permanent magnet or a moving charged particle

5 True/False questions

  1. alternating currentElectrical current that flows in only one direction through a wire

          

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

          

  3. galvanometera device used to measure electrical current.

          

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

          

  5. generatora machine that changes mechanical energy into electric power