CP9 revision quiz

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Across
  1. 3. voltage divided by current =
  2. 6. the unit for power
  3. 7. what is the quickest way to change the resistance in a circuit?
  4. 9. a current where the movement of charge c changes direction
  5. 10. the movement of charge in one direction only
Down
  1. 1. if a fault occurs, a large current can flow between the earth and live wire which can melt and break this component
  2. 2. energy transferred per second
  3. 4. it is a safety wire and connects the metal case of an appliance to the earth to prevent a fault
  4. 5. current x time =
  5. 8. the flow of electrons