Explore topic-wise MCQs in Analog Circuits.

This section includes 5 Mcqs, each offering curated multiple-choice questions to sharpen your Analog Circuits knowledge and support exam preparation. Choose a topic below to get started.

1.

Which of these is wrong for an all-pass filter?

A. It is used for phase equalization in a communication system
B. It is used in landline communication
C. Its phase shift is -2tan<sup>-1</sup>RC, between 0 to -180
D. It can be made using a single op-amp
Answer» D. It can be made using a single op-amp
Discussion
2.

Which of these is incorrect for a band-stop filter?

A. An adder is required when designing it using LPF and HPF
B. LPF and HPF are connected in parallel
C. The HPF cut-off frequency should be much higher than LPF cut-off frequency
D. The LPF and HPF are connected in series
Answer» E.
Discussion
3.

Given a second-order Butterworth HPF, find the maximum gain magnitude.

A. 1.586 dB
B. 4 dB
C. 2.66 dB
D. 1 dB
Answer» C. 2.66 dB
Discussion
4.

A first-order Butterworth low pass filter is an interconnection of ____________ and ___________

A. Single low pass RC circuit, Voltage follower
B. Low pass RC circuit, Band-pass RC circuit
C. Low pass RC circuit, LC feedback
D. Single low pass RC circuit, Power amplifier
Answer» B. Low pass RC circuit, Band-pass RC circuit
Discussion
5.

Find which one is a sallen-key topology.

A. <a href="https://www.sanfoundry.com/wp-content/uploads/2019/08/analog-circuits-question-papers-q1a.png"><img alt="Sallen-key topology used to implement second-order active filters - option a" class="alignnone size-full wp-image-243667" height="187" sizes="(max-width: 445px) 100vw, 445px" src="https://www.sanfoundry.com/wp-content/uploads/2019/08/analog-circuits-question-papers-q1a.png" srcset="https://www.sanfoundry.com/wp-content/uploads/2019/08/analog-circuits-question-papers-q1a.png 445w, https://www.sanfoundry.com/wp-content/uploads/2019/08/analog-circuits-question-papers-q1a-300x126.png 300w" width="445"/></a>
B. <a href="https://www.sanfoundry.com/wp-content/uploads/2019/08/analog-circuits-question-papers-q1b.png"><img alt="Sallen-key topology used to implement second-order active filters - option b" class="alignnone size-full wp-image-243668" height="151" sizes="(max-width: 367px) 100vw, 367px" src="https://www.sanfoundry.com/wp-content/uploads/2019/08/analog-circuits-question-papers-q1b.png" srcset="https://www.sanfoundry.com/wp-content/uploads/2019/08/analog-circuits-question-papers-q1b.png 367w, https://www.sanfoundry.com/wp-content/uploads/2019/08/analog-circuits-question-papers-q1b-300x123.png 300w" width="367"/></a>
C. <a href="https://www.sanfoundry.com/wp-content/uploads/2019/08/analog-circuits-question-papers-q1c.png"><img alt="Sallen-key topology used to implement second-order active filters - option c" class="alignnone size-full wp-image-243669" height="147" sizes="(max-width: 352px) 100vw, 352px" src="https://www.sanfoundry.com/wp-content/uploads/2019/08/analog-circuits-question-papers-q1c.png" srcset="https://www.sanfoundry.com/wp-content/uploads/2019/08/analog-circuits-question-papers-q1c.png 352w, https://www.sanfoundry.com/wp-content/uploads/2019/08/analog-circuits-question-papers-q1c-300x125.png 300w" width="352"/></a>
D. <a href="https://www.sanfoundry.com/wp-content/uploads/2019/08/analog-circuits-question-papers-q1d.png"><img alt="Sallen-key topology used to implement second-order active filters - option d" class="alignnone size-full wp-image-243670" height="186" sizes="(max-width: 334px) 100vw, 334px" src="https://www.sanfoundry.com/wp-content/uploads/2019/08/analog-circuits-question-papers-q1d.png" srcset="https://www.sanfoundry.com/wp-content/uploads/2019/08/analog-circuits-question-papers-q1d.png 334w, https://www.sanfoundry.com/wp-content/uploads/2019/08/analog-circuits-question-papers-q1d-300x167.png 300w" width="334"/></a>
Answer» B. <a href="https://www.sanfoundry.com/wp-content/uploads/2019/08/analog-circuits-question-papers-q1b.png"><img alt="Sallen-key topology used to implement second-order active filters - option b" class="alignnone size-full wp-image-243668" height="151" sizes="(max-width: 367px) 100vw, 367px" src="https://www.sanfoundry.com/wp-content/uploads/2019/08/analog-circuits-question-papers-q1b.png" srcset="https://www.sanfoundry.com/wp-content/uploads/2019/08/analog-circuits-question-papers-q1b.png 367w, https://www.sanfoundry.com/wp-content/uploads/2019/08/analog-circuits-question-papers-q1b-300x123.png 300w" width="367"/></a>
Discussion