Discussion
Which diode would you choose to tune an oscillator electronically?
Answer: D
A varactor gives a capacitance controlled by a voltage, which is precisely what electronic tuning needs and is how every phase-locked loop's oscillator is steered. A Schottky rectifies quickly, a light emitting diode indicates, and a Zener regulates. The fact that the same physical effect - a bias-dependent depletion width - is a nuisance in a rectifier and the whole point of a varactor is a good illustration of how devices are specialised. Framing the question as which quantity the change acts upon makes the answer follow without calculation.
No comment is present. Be the first to comment.
Loading…
Post your comment
Please log in or register to post a comment.
Examination Categories
- SSC Exams
- Banking Exams
- Teaching Exams
- Civil Services Exams
- Railways Exams
- Engineering Recruitment Exams
- Defence Exams
- State Government Exams
- Police Exams
- Insurance Exams
- Nursing Exams
- Other Government Exams
- NRA CET
- PG Entrance Exams
- Campus Placement
- MBA Entrance Exams
- CUET and UG Entrance
- Judiciary Exams
- Regulatory Body Exams
- Software Development