Across
- 2. A ___________ field is the area around a magnet
- 3. An early device used to store electric charge
- 6. Production of current by changing a magnetic field is called electromagnetic ____________
- 7. Stationary part of a generator
- 10. Built the first electrostatic generator
- 13. ______________ current flows in only one direction
- 14. The first lamp suitable for household use
- 15. Device that changes electrical energy into mechanical energy
- 16. Rotating loop or coil of wire in a generator
- 17. Unit used to measure electric current
- 18. Machine used to turn generators in power plants
- 20. The most efficient lamp
- 21. Scientist credited with discovering electromagnetic induction
Down
- 1. Device that changes mechanical energy into electrical energy
- 4. The negative terminal on a voltaic cell
- 5. Generator part that reverses the current every half-turn
- 7. _________ ings allow current to flow from a rotating loop
- 8. Device that increases or decreases voltage
- 9. This is how electrochemical cells must be arranged to boost volatge
- 10. An alternating current ___________ that uses a slip ring
- 11. When opposite charges accumulate in a cloud and on the ground
- 12. Current that regularly reverses direction(use the abbreviation)
- 19. One or more cells connected to terminals as a single source