ACDC 3rd 9 Weeks Test

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Across
  1. 3. A device that stores an electrical charge
  2. 4. A device that conducts electrical current only after a positive pulse is put on the gate
  3. 5. What type of wave shape pulses are emitted by pin 3?
  4. 7. The act of a smaller current controlling a larger current
  5. 10. The only way to reset the dual burglar alarm is to disconnect the __________
  6. 11. The equation to calculate the ____________ is 0.693(R1+2R2)(C1)
  7. 12. Pin 1 on a 555 timer is the ______________ pin
  8. 15. The 555 timer is commonly used as an ______________ multivibrator
  9. 16. A device that converts electrical energy to sound
  10. 18. A device that works as a current amplifier
  11. 20. What type of transistor is the 2N3906?
Down
  1. 1. a component has ____________ if it has a positive and negative side
  2. 2. The more electrons that flow, the _____________ the LED will light be
  3. 6. A device that varies its resistance with light
  4. 8. The gray line on a diode indicates the ___________ side (Look at schematic symbol)
  5. 9. On the transistor schematic symbol the arrow indicates the ____________ pin
  6. 13. DIP chip means ________-_______ package
  7. 14. Pin 3 on the 555 timer is the ___________ pin
  8. 17. what is the unit for frequency (ex Unit of Current is Amps)
  9. 19. What type of transistor is the 2N3904?