Across
- 2. keeps each electron tightly in place
- 5. used very often as a conductor
- 7. instrument for measuring current flow
- 9. electrically operated switch
- 12. positive charges
- 14. semiconductor that produces light from electricity
- 16. subatomic particle without an electrical charge
- 17. inventor of the phonograph and light bulb
- 18. potential difference
Down
- 1. device that allows current flow in one direction
- 2. also called coil or choke
- 3. stores electrical energy
- 4. surrounded by one or more electrons
- 6. converts chemical energy into electrical energy
- 8. temporary artificial magnet
- 10. construction base for prototyping electronics
- 11. the amount of charge that flows
- 13. negative charges
- 15. reduces the flow of current