Across
- 3. Unit of resistance (3)
- 7. Source of electrical energy (4)
- 11. Ohm's law states that current and P.D. is _____ if temp is constant(6,11)
- 12. Path for electric current (7)
- 14. Electrical potential difference (7)
- 15. Opposition to current flow (10)
- 16. Flow of electric charge (7)
- 17. Measured in joules, transferred in circuits (6)
- 18. Device to open or close a circuit (6)
- 20. Safety device that melts when current is too high (4)
- 21. Increases when wire is longer or thinner (10)
- 22. Ohm's law can can be expressed with this equation (4)
Down
- 1. Material that allows current flow (9)
- 2. Rate of energy transfer (5)
- 4. Symbol = circle with a cross inside (4)
- 5. Unit of electric current (6)
- 6. Multiple cells (7)
- 7. Property of matter causing electricity (6)
- 8. Negatively charged particle (8)
- 9. Unit of potential difference (4)
- 10. How much energy is transferred as the charge moves through a component (9,10)
- 11. Only allows current to flow in one direction (5)
- 13. Circuit with multiple paths (8)
- 18. Type of circuit with one path (6)
- 19. Material that resists current flow (9)