In deriving ac equivalent circuit for an amplifier circuit, we short circuit___________?
Correct answer: D. all capacitors
- A. all resistors
- B. all transistors
- C. all inductors
- D. all capacitors
Explanation
For the usual midband AC equivalent circuit, capacitors have negligible reactance and are replaced by short circuits. Resistors remain in the circuit, while inductors are not generally shorted.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
Practise Electronics and Devices
758 free Electronics and Devices MCQs from Electrical Engineering, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Electrical Engineering questions like this
Electrical Engineering is on 2 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Electronics and Devices questions
In an op-amp differentiator:________________?
The early effect in a bipolar junction transistor is caused by_______________?
The effective channel length of a MOSFET in a saturation decreases with increase in___________?
When a transistor is connected in common emitter mode, it with have__________?
In a transistor leakage current mainly depends on__________?
Voltage Series feedback also called series-shunt feedback) results in__________?