P5 Glossary Crossword

Edit Answers
1234567891011
Across
  1. 2. a fuse contains a thin wire that melts and cuts the current off if too much current passes through it
  2. 5. the wire in a mans cable that connects the metal case of an appliance to the earth
  3. 7. the mains wire that has a voltage that alternates between voltage
  4. 8. has three pins a live neutral and earth pin
  5. 10. a device used to display the shape of an electrical wave
  6. 11. electrical device used to step down the size of an alternating potential difference
Down
  1. 1. the wire of a mains circuit that is earthed at a local substation so its potential is close to 0
  2. 3. electric current in a circuit that is in one direction only
  3. 4. electrical device used to step up the size of an alternating potential difference
  4. 6. electric current in a circuit that repeatedly reverses its direction
  5. 9. a plug has an insulated case and is used to connect a cable from an appliance to a socket