The upper or lower cut off frequency is also called______________frequency?
Correct answer: C. 3 db
- A. Resonant
- B. Sideband
- C. 3 db
- D. None of the above
Explanation
At either cutoff frequency, the amplifier output power falls to half its midband value, corresponding to a voltage gain decrease of about 3 dB. Therefore cutoff frequencies are called 3 dB frequencies.
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
A gain of 1000 times in voltage is expressed by_______________?
A device able to supply electrical energy is a __________?
In a certain parallel resonant band-pass filter, the resonant frequency is 14 kHz. If the bandwidth is 4 kHz, the lower frequency_____________?
The number of stages that can be directly coupled is limited because___________?
The bandwidth of a single stage amplifier is_____________that of a multistage amplifier?
If the power level of an amplifier reduces to half, the db gain will fall by___________?