Electricity Crossword

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Across
  1. 2. A device for detecting the presence of an electric charge
  2. 4. The ratio of useful energy output to total energy input
  3. 6. A form of energy that results from the interaction of charged particles
  4. 8. The unit of electrical resistance
  5. 9. The unit of electric current
  6. 10. A unit of electrical power
  7. 12. The unit of potential difference
  8. 13. An object that can transfer a very large number of electrons to or from a charged object
Down
  1. 1. A source of energy that generates an electric current
  2. 2. The study of static charges
  3. 3. The unit of electric charge
  4. 5. The rate of movement of electric charge
  5. 7. A material in which electrons can move easily between atoms
  6. 11. A resistor or any other device that transforms electrical energy into heat, motion, sound, or light