Across
- 2. type of current that goes in one direction
- 4. type of circuit that has 1 path for electrons
- 5. part of magnet where effect is strongest
- 7. type of circuit that has multiple paths for electrons
- 9. amount of electricity that flows past a point per second
- 14. tiny areas where magnetic field lines up
- 17. materials that can be magnetized
- 18. type of current that constantly switches directions
- 19. SI unit for current
- 20. device used to detect electric charges
- 21. potential electrical difference
- 22. device that converts mechanical energy into electricity
Down
- 1. SI unit for resistance
- 3. opposition to flow of electrons
- 6. wire wrapped around metal core
- 8. device that protects wires from excess current
- 10. turns electrical energy into mechanical energy
- 11. electricity that is a short burst of electrons
- 12. material that allows electrons to move freely
- 13. material that doesn't allow electrons to move
- 15. SI unit for voltage
- 16. turns chemical energy into electrical energy