Crossword Topic 1

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Across
  1. 7. bipolar junction transistor Identify the circuit component show under symbol 1
  2. 9. What happens to the resistance of a VDR, when subjected to a high voltage?
  3. 13. Name the component’s terminals, as labelled 2
  4. 14. channel JFET Identify the circuit component show under symbol 3
  5. 15. capacitor Which type of capacitor is polarity sensitive?
  6. 16. Name the component’s terminals, as labelled 5
  7. 17. How is the process called, when we couple AC from one circuit (or part of circuit) to another but blocks DC levels?
  8. 19. Name the component’s terminals, as labelled 3
  9. 21. bipolar junction transistor Identify the circuit component show under symbol 2
  10. 22. Name the component’s terminals, as labelled 4
Down
  1. 1. biased Comment on an LED’s bias, when lit.
  2. 2. dependant resistor Which non-linear resistor protects against high voltage surges (spikes) on power lines?
  3. 3. voltage minus LED voltage How do we calculate the voltage across the current limiting resistor within an LED circuit?
  4. 4. limitation What is the purpose of the resistor Rs in an LED circuit?
  5. 5. biased How is a zener diode biased when used in a voltage stabilisation circuit?
  6. 6. If an LED would be connected directly to a 12V DC supply. What would happen to the component?
  7. 8. channel JFET Identify the circuit component show under symbol 4
  8. 10. How we call the method, which removes the ac signal but keeps the dc levels?
  9. 11. thermistor Which type of non-linear resistor can protect against large inrush currents when a circuit is first powered on?
  10. 12. Name the component’s terminals, as labelled 1
  11. 14. thermistor Which type of non-linear resistor can be used limit high currents under fault conditions?
  12. 18. Name the component’s terminals, as labelled 6
  13. 20. voltage In a voltage stabilisation circuit, which voltage is equal to the voltage drop across the load resistor?