Across
- 1. energy used divided by the time taken
- 4. electrical potential
- 6. flow of electrical charge
- 8. mineralized resin from ancient trees
- 9. has positive and negative charge
- 11. the measurement of tension
- 13. has north and south poles
Down
- 2. opposing charges
- 3. all objects attract each other by mass
- 5. the Greek word for amber
- 7. similar charges
- 10. wrote theory of electromagnetism
- 12. the unit of electrical current strength