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5 Written questions

5 Multiple choice questions

  1. a large wheel with blades that rotates and provides mechanical energy to a generator
  2. A group of atoms whose magnetic fields are aligned
  3. the lines of force surrounding a permanent magnet or a moving charged particle
  4. A device that can increase or decrease the voltage of an alternating current.
  5. the force that causes magnets to pull on objects that are made of certain metals, such as iron

5 True/False questions

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

          

  2. magnetic polestwo ends of a magnet where the magnetic forces are strongest

          

  3. solenoida large wheel with blades that rotates and provides mechanical energy to a generator

          

  4. commutatorattached to the armature in a motor; changes the direction of the electric current

          

  5. galvanometera machine that changes mechanical energy into electric power

          

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