A 741-type OP-AMP has a gain-bandwidth product of 1MHz. A non-inverting amplifier using this op-amp & having a voltage gain of 20db will exhibit -3db bandwidth of__________?
Correct answer: B. 100KHz
- A. 50 KHz
- B. 100KHz
- C. 1000/17 KHz
- D. 1000/7.07 KHz
Explanation
A 20 dB voltage gain corresponds to a voltage gain of 10, since 20 log₁₀(A_v) = 20. Thus the bandwidth is approximately 1 MHz/10 = 100 kHz.
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 CE arrangement, the value of input impedance is approximately equal to ______________?
In order to determine hfe and hie parameters of a transistor, __________ is an a.c. short-circuited?
Hybrid means_____________?
Most of the linear ICs are based on the two-transistor differential amplifier because of its___________?
The bandwidth of an RF tuned amplifier is dependent on____________?
In a p-n junction diode under reverse bias , the magnitude of electric field is maximum at_____________?