Chapter 18 Crossword

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Across
  1. 3. A law stating that electric current is proportional to voltage and inversely proportional to resistance
  2. 5. SI base unit
  3. 6. speed of electronics
  4. 7. The SI unit of electrical resistance
  5. 11. A flow of electric charges
  6. 13. current Type of current in a battery
  7. 14. (dc) An electric current flowing in one direction only
  8. 15. The SI unit of power, equivalent to one joule per second
  9. 16. A measure of the resisting power of a specified material to the flow of an electric current
  10. 17. Supply (a device) with mechanical or electrical energy
Down
  1. 1. In mathematics, the root mean square
  2. 2. a unit of energy equal to the work done by a power of 1000 watts operating for one hour
  3. 4. The change in electrical potential associated with the passage of an impulse along the membrane of a muscle cell or nerve cell
  4. 6. Superconductivity is an electrical resistance of exactly zero which occurs in certain materials below a characteristic temperature
  5. 8. The difference of electrical potential between two points
  6. 9. The refusal to accept or comply with something
  7. 10. Used in remotes that give it “power”
  8. 12. (ac) An electric current that reverses its direction many times a second at regularintervals, typically used in power supplies