Across
- 3. a cell consists of two electodes surrounded by a material called electrolyte
- 4. a soft metal core made into a magnet by the passage of electric current through a coil surrounding it
- 6. an instrument for detecting and measuring electricity
- 7. an electric current flowing in one direction only
- 8. force that opposes the sliding motion between two touching surfaces
- 9. r=v/l
- 11. an electric current that revereses its direction many times
- 13. transfer of thermal energy by collisons between particiles in matter
Down
- 1. is the tendency for a material to oppose the flows of electrons changing
- 2. the accumulation of excess electric charge on an object
- 5. has only one loop to flow through
- 10. contain two or more branches for current to move through
- 12. the rearrangement of electrons on a neutral objectcaused by a nearby charged object