Electronics revison

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Across
  1. 3. non mechanical switch
  2. 5. uses a bus cable
  3. 6. used inside starter motors
  4. 9. greatest electronics tutor ever
  5. 10. a rotating electrical contact
  6. 11. regular oscilloscope pattern
  7. 15. electromagnetic switch
  8. 16. an incomplete circuit
  9. 18. uses two wires to control systems
Down
  1. 1. uses a piezo crystal to detect sound
  2. 2. shows quantity over time
  3. 4. lines of magnetic field
  4. 7. ability to hold a charge
  5. 8. a measure of resistance
  6. 9. used to locate gps systems
  7. 12. a socket used for diagnosis
  8. 13. used to show time
  9. 14. electrical pressure
  10. 17. a safety link in a circuit
  11. 19. measure of current