Circuits

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Across
  1. 4. The flow of charges around a circuit
  2. 5. Electricity that repeatedly switches which direction it flows
  3. 7. A material with loosely bound electrons, which permits charges to move around
  4. 10. The SI unit of electrical current
  5. 11. Measures current
  6. 12. Measures potential difference
Down
  1. 1. The SI unit of electrical charge
  2. 2. The difficulty in moving charges through a conductor
  3. 3. A material which does not let charges move around or through it
  4. 6. Provides the "push" to move charges
  5. 8. The type of electricity that only flows in one direction
  6. 9. Long thin conductors that move charges from place to place
  7. 13. The SI unit of resistance