Diodes and Applications Questions and Answers

Practice Mode
Showing 10 of 64 questions
Q31
Which of the following circuits would require the least amount of filtering?
  • A A half-wave rectifier
  • B A full-wave rectifier
  • C A bridge rectifier
  • D A full-wave rectifier and a bridge rectifier
Answer: Option D
Q32
The voltage where current may start to flow in a reverse-biased pn junction is called the
  • A breakdown voltage
  • B barrier potential
  • C forward voltage
  • D biasing voltage
Answer: Option A
Q33
Providing a constant output regardless of ac input or load resistance changes is the function of a:
  • A transformer
  • B filter
  • C regulator
  • D rectifier
Answer: Option C
Q34
When a diode is destroyed it has infinite impedance. When damaged by heat it will probably:
  • A short
  • B conduct more
  • C conduct less
  • D open
Answer: Option A
Q35
The area at the junction of p-type and n-type materials that has lost its majority carriers is called the
  • A barrier potential
  • B depletion region
  • C n region
  • D p region
Answer: Option B
Q36
DC power should be connected to forward bias a diode as follows:
  • A – anode, + cathode
  • B – cathode, – anode
  • C + anode, – cathode
  • D + cathode, + anode
Answer: Option C
Q37
At any given time in an intrinsic piece of semiconductor material at room temperature
  • A electrons drift randomly
  • B recombination occurs
  • C holes are created
  • D All of the above
Answer: Option D
Q38
In a power supply diagram, which block indicates a pulsating dc output?
  • A transformer
  • B filter
  • C rectifier
  • D regulator
Answer: Option C
Q39
List three diode packages:
  • A clip package, DIP, small current package
  • B DIP, small current package, large current package
  • C small current package, large current package, and SIP
  • D small current package, large current package, clip package
Answer: Option D
Q40
The mimicking of an open/closed switch by a diode allows alternating current to be:
  • A rectified
  • B regulated
  • C controlled
  • D attenuated
Answer: Option A

📚 More from Electronics

← All Topics 🎯 Practice ⏱️ Take Test 🔍 Search
Electronics
Back to Electronics
Other Subjects
Questions and Answers for Competitive Exams Various Entrance Test