Discussion
How is an amplifier's bandwidth measured?
Answer: C
Bandwidth is conventionally the interval between the two frequencies at which the gain has fallen three decibels from its passband value. The ninety-degree phase point sits well beyond the break, rise time gives the bandwidth only through a known factor and only for a single-pole response, and distortion is unrelated to the roll-off. A definition fixed by convention rather than by physics still has to be applied exactly, or two measurements of the same amplifier will not agree.
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