Electricity circuit components

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Across
  1. 2. plugged into the mains, supplies alternating current
  2. 3. can be open to stop current flowing or closed to allow current to flow
  3. 7. allows current to flow in only one direction emits light when current is flowing through it
  4. 9. usually plugged into the mains to supply electric current
  5. 10. transfers electrical energy to light and heat
  6. 11. resistance can be varied to control current
  7. 12. transfers kinetic energy to electrical
  8. 13. a coil of wire, usually with a soft iron core, which becomes magnetised when current flows through it
  9. 14. transfers electric energy to heat energy
Down
  1. 1. the voltage of an electrical supply step up transformers increase voltage, step down transformers decrease voltage
  2. 4. supplies the voltage to make current flow in a circuit,transfers its store of chemical energy to electrical energy
  3. 5. transfers electrical energy to movement
  4. 6. controls the amount of current flowing
  5. 8. more than one cell working together to increase the voltage or the time in the current can be delivered for