Discussion
Assertion (A): Assertion: Voltage divider bias makes the operating point nearly independent of beta.
Reason (R): Reason: The emitter current is set by the base voltage and the emitter resistor.
Select the correct answer from the options below.
Answer: D
Both are true and the second is exactly why the first holds: the expression for emitter current contains only a voltage and a resistance, with no device parameter in it. Beta enters only through the small base current loading the divider, which a stiff divider makes negligible. Arranging a design so that the least reliable parameter cancels out of the governing equation is the general technique this arrangement illustrates. The shared properties explain why these schemes form a family, and the differences explain why more than one exists.
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