Across
- 2. current that flows in one direction only
- 5. current that reverses direction at regular intervals
- 7. the flow of electrons
- 8. the negatively charged particle of an atom
Down
- 1. the flow of electricity through conductors
- 3. a machine which generates electricity
- 4. the "spider web" of electricity over an extremely large area
- 6. any material that will not allow electricity to flow through it