Across
- 6. the Earth's core
- 8. called a cell
- 9. a measure of the difference in energy across a current
- 10. materials that are good holding onto electric charges
- 11. materials with high electrical resistance
- 12. groups of atoms that excert a force in a same direction
- 13. any piece of material that produces a measurable magnetic field
Down
- 1. want to cancel out their electric charges
- 2. caused by metals
- 3. amount of energy transformed from electric currents by components
- 4. materials that tend to allow charges to move through them easily
- 5. cause by differences in electrical charges
- 7. movement of charge from one terminal to another