Introduction to electricity

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Across
  1. 3. A measure of voltage
  2. 6. An addition cable in British plugs as a safety feature
  3. 9. A safety component which controls the amount of current which can flow through a circuit
  4. 10. Negatively charged particles, which form electricity
  5. 11. lamp A component which emits light
  6. 13. an electrical component which only allows current to flow in one direction
  7. 14. Also known as potential difference, the 'electrical pressure' of a current
  8. 16. Negatively charges particles which form electricity
Down
  1. 1. When current is able to change direction.
  2. 2. A source of direct current
  3. 4. The flow of electricity
  4. 5. A source of alternating current
  5. 7. A resistor which is temperature dependent.
  6. 8. When current can only flow in one direction
  7. 12. Made of several electrical components connected together with a power supply.
  8. 15. A measure of current