Electric circuit Crossword 21/05

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Across
  1. 6. a material that does not conduct electricity
  2. 10. passive two-terminal electrical component that implements electrical resistance as a circuit element
  3. 11. the movement of electrons through a wire
  4. 12. an imbalance of electric charges within or on the surface of a material
Down
  1. 1. a unidirectional current
  2. 2. a current that periodically changes direction
  3. 3. a material that conducts electricity well
  4. 4. the pressure from an electrical circuit's power source that pushes charged electrons (current) through a conducting loop
  5. 5. a completed circuit
  6. 7. a stream of charged particles
  7. 8. a circuit that isn't complete
  8. 9. a law that states that the current through a conductor between two points is directly proportional to the voltage across the two points