Form 3 C6 Electricity and Magnetism Crossword

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Across
  1. 2. ________ is blue.
  2. 4. The common unit used for electrical energy is _________.
  3. 6. The electrical energy used depends on the power and ______________ of the appliance and use length of time the appliance is used.
  4. 8. is used to reduce the voltage of an alternating current.
  5. 11. reverses its direction of flow continually.
  6. 13. ________ is brown.
  7. 14. is used to break the circuit when excess voltage flows through the earth wire or during a short circuit.
  8. 15. ________ = (useful output energy) / (input energy supplied) x 100%
Down
  1. 1. The supply voltage of ____________ provided to our home is 240V.
  2. 3. Fuse cuts off electricity supply when there is an excessive current flow by ________ its fuse wire.
  3. 5. flows in one direction only.
  4. 7. is used to increase the voltage of an alternating current.
  5. 9. ________ transfers the electric current to the ground during short circuit.
  6. 10. Torchlight requires batteries, thus it uses a _________.
  7. 12. ________ has yellow and green stripes.