Diodes and Applications Questions and Answers
Diodes and their applications play a vital role in electronics, especially in rectification, signal clipping, and voltage regulation circuits. This topic offers electronics aptitude questions and answers with explanations on diode behavior, characteristics, and real-world applications. Perfect for GATE, BEL, and ISRO aspirants, these questions test your analytical understanding of semiconductor diodes. Practice these Diodes and Applications questions with answers to build a solid foundation in analog electronics and enhance your problem-solving ability for engineering exams and interviews.
Diodes and Applications
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64 questions
31. Which of the following circuits would require the least amount of filtering?
- A half-wave rectifier
- A full-wave rectifier
- A bridge rectifier
- A full-wave rectifier and a bridge rectifier
32. The voltage where current may start to flow in a reverse-biased pn junction is called the
- breakdown voltage
- barrier potential
- forward voltage
- biasing voltage
33. Providing a constant output regardless of ac input or load resistance changes is the function of a:
- transformer
- filter
- regulator
- rectifier
34. When a diode is destroyed it has infinite impedance. When damaged by heat it will probably:
- short
- conduct more
- conduct less
- open
35. The area at the junction of p-type and n-type materials that has lost its majority carriers is called the
- barrier potential
- depletion region
- n region
- p region
36. DC power should be connected to forward bias a diode as follows:
- – anode, + cathode
- – cathode, – anode
- + anode, – cathode
- + cathode, + anode
37. At any given time in an intrinsic piece of semiconductor material at room temperature
- electrons drift randomly
- recombination occurs
- holes are created
- All of the above
38. In a power supply diagram, which block indicates a pulsating dc output?
- transformer
- filter
- rectifier
- regulator
39. List three diode packages:
- clip package, DIP, small current package
- DIP, small current package, large current package
- small current package, large current package, and SIP
- small current package, large current package, clip package
40. The mimicking of an open/closed switch by a diode allows alternating current to be:
- rectified
- regulated
- controlled
- attenuated