Two-Terminal Devices Questions and Answers

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Showing 10 of 29 questions
Q1
Which of the following areas is (are) an application of infrared-emitting diodes?
  • A Intrusion alarms
  • B Shaft encoders
  • C Paper-tape readers
  • D All of the above
Answer: Option D
Q2
Schottky diodes are very effective at frequencies approaching ________.
  • A 20 GHz
  • B 10 MHz
  • C 100 MHz
  • D 1 MHz
Answer: Option A
Q3
What is the voltage drop across Schottky diodes?
  • A 0 V to 0.2 V
  • B 0.7 V to 0.8 V
  • C 0.8 V to 1.0 V
  • D 1.0 V to 1.5 V
Answer: Option A
Q4
In which region is the operating point stable in tunnel diodes?
  • A Negative-resistance
  • B Positive-resistance
  • C Both negative- and positive-resistance
  • D Neither negative- nor positive-resistance
Answer: Option B
Q5
What is the maximum temperature limit for liquid-crystal displays (LCDs)?
  • A 10ºC
  • B 30ºC
  • C 60ºC
  • D 100ºC
Answer: Option C
Q6
Which of the following diodes is limited to the reverse-bias region in its region of operation?
  • A Schottky
  • B Tunnel
  • C Photodiode
  • D Rectifier
Answer: Option C
Q7
The majority of power diodes are constructed using ________.
  • A molybdenum
  • B platinum
  • C tungsten
  • D silicon
Answer: Option D
Q8
Which of the following is (are) diodes?
  • A Schottky
  • B Varactor
  • C Tunnel
  • D All of the above
Answer: Option D
Q9
What is the limit of peak current IP in tunnel diodes?
  • A A few microamperes to several hundred amperes
  • B A few microamperes to several amperes
  • C A few microamperes to several milliamperes
  • D A few microamperes to several hundred microamperes
Answer: Option A
Q10
What is the response time of LCDs?
  • A Less than 100 ns
  • B 50 ms
  • C 100 ms to 300 ms
  • D 400 ms
Answer: Option C

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