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5 Written questions

5 Multiple choice questions

  1. attached to the armature in a motor; changes the direction of the electric current
  2. a large wheel with blades that rotates and provides mechanical energy to a generator
  3. current in which electrons constantly change direction at a regular rate
  4. A group of atoms whose magnetic fields are aligned
  5. two ends of a magnet where the magnetic forces are strongest

5 True/False questions

  1. magnetismthe lines of force surrounding a permanent magnet or a moving charged particle

          

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

          

  3. magnetic fieldtwo ends of a magnet where the magnetic forces are strongest

          

  4. transformera device used to measure electrical current.

          

  5. direct currentcurrent in which electrons constantly change direction at a regular rate

          

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