STI2D AC-SIN

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Across
  1. 3. A panel wrapped in cardboard
  2. 4. A pipe for the smoke
  3. 6. A metal long piece with a shape of I
  4. 9. A component to adjust voltage
  5. 11. A component to create induction flow
  6. 13. A specific way to construct building
  7. 14. The value of a potential
  8. 15. A component to switch circuits
  9. 16. An electronic component with three legs
  10. 20. A type of beam to support a roof
  11. 23. A device to protect electric machine
  12. 24. A long piece at the base of a wall
  13. 25. A wireless communication for computer
  14. 27. A low range wireless communication
  15. 28. A component expres in Farad
Down
  1. 1. The number of events by unit of time
  2. 2. The flow of electron in a wire
  3. 5. A fire-place
  4. 6. A global network for devices
  5. 7. An actuator to rotate mechanic parts
  6. 8. A material used to prevent heat to leave
  7. 9. A panel with multiple layer from trees
  8. 10. A material used to bind stones
  9. 12. A material from cement, sand, water
  10. 13. A long piece used in construction
  11. 17. A device to inlet electricity
  12. 18. An Italian famous micro-controller
  13. 19. abbreviation for heat, ventilation, and air conditioning.
  14. 20. A component to reduce current
  15. 21. A device to produce photons
  16. 22. A component made with a coil
  17. 26. A type of beam to support a floor