Electricity

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Across
  1. 3. a rapid and interrupted current, changing directions 60 times per second
  2. 5. refers to the poles of an electric current, positive or negative
  3. 8. current is a constant and direct current
  4. 9. any material that conducts electricity
Down
  1. 1. measures the pressure or force that pushes electric currents forward through a conductor
  2. 2. a constant, even flowing current that goes in one direction, produced by chemical means
  3. 4. measures the strength of an electrical current
  4. 6. measures the resistance of an electrical current
  5. 7. material that does not transmit electricity