Explore topic-wise MCQs in Linear Integrated Circuit.

This section includes 8 Mcqs, each offering curated multiple-choice questions to sharpen your Linear Integrated Circuit knowledge and support exam preparation. Choose a topic below to get started.

1.

3v, 5v and 7v are the three input voltage applied to the inverting input terminal of averaging amplifier. Determine the output voltage?

A. -5v
B. -10v
C. -15v
D. -20v
Answer» B. -10v
Discussion
2.

Find out the gain value by which each input of the averaging amplifier is amplified ?( Assume there are four inputs)

A. 0.5
B. 0.25
C. 1
D. 2
Answer» C. 1
Discussion
3.

An amplifier in which the output voltage is equal to average of input voltage?

A. Summing amplifier
B. Weighting amplifier
C. Scaling amplifier
D. Averaging amplifier
Answer» E.
Discussion
4.

An inverting scaling amplifier has three input voltages Va, Vb and Vc. Find it output voltage?

A. V<sub>O</sub>= – {[(R<sub>F</sub>/R<sub>a</sub>)×V<sub>a</sub>] +[(R<sub>F</sub>/R<sub>b</sub>)×V<sub>b</sub>]+[(R<sub>F</sub>/R<sub>c</sub>)×V<sub>c</sub>]}
B. V<sub>O</sub>= – [(R<sub>F</sub>/R<sub>a</sub>)+(R<sub>F</sub>/R<sub>b</sub>)+(R<sub>F</sub>/R<sub>c</sub>)]×[( V<sub>a</sub> +V<sub>b</sub>+V<sub>c</sub>)].
C. V<sub>O</sub> = – {[(R<sub>a</sub>/R<sub>F</sub>)×V<sub>a</sub>] +[(R<sub>b</sub>/R<sub>F</sub>)×V<sub>b</sub>]+[(R<sub>c</sub>/R<sub>F</sub>)×V<sub>c</sub>]}
D. None of the mentioned
Answer» B. V<sub>O</sub>= ‚Äö√Ñ√∂‚àö√ë‚àö¬® [(R<sub>F</sub>/R<sub>a</sub>)+(R<sub>F</sub>/R<sub>b</sub>)+(R<sub>F</sub>/R<sub>c</sub>)]‚Äö√†√∂‚àö‚â•[( V<sub>a</sub> +V<sub>b</sub>+V<sub>c</sub>)].
Discussion
5.

In which type of amplifier, the input voltage is amplified by a scaling factor

A. Summing amplifier
B. Averaging amplifier
C. Weighted amplifier
D. Differential amplifier
Answer» D. Differential amplifier
Discussion
6.

An inverting amplifier with gain 1 have different input voltage: 1.2v,3.2v and 4.2v. Find the output voltage?

A. 4.2v
B. 8.6v
C. -4.2v
D. -8.6v
Answer» E.
Discussion
7.

Determine the expression of output voltage for inverting summing amplifier consisting of four internal resistors? (Assume the value of internal resistors to be equal)

A. V<sub>o</sub> = -(R<sub>f</sub>/R )√ó(V<sub>a</sub> +V<sub>b</sub>+V<sub>c</sub>+V<sub>d</sub>)
B. V<sub>o</sub> = (R<sub>F</sub>/R)√ó(V<sub>a</sub> +V<sub>b</sub>+V<sub>c</sub>+V<sub>d</sub>)
C. V<sub>o</sub> = (R/ R<sub>F</sub>)√ó(V<sub>a</sub> +V<sub>b</sub>+V<sub>c</sub>+V<sub>d</sub>)
D. None of the mentioned
Answer» B. V<sub>o</sub> = (R<sub>F</sub>/R)‚Äö√†√∂‚àö‚â•(V<sub>a</sub> +V<sub>b</sub>+V<sub>c</sub>+V<sub>d</sub>)
Discussion
8.

In which amplifier the output voltage is equal to the negative sum of all the inputs?

A. Averaging amplifier
B. Summing amplifier
C. Scaling amplifier
D. All of the mentioned
Answer» C. Scaling amplifier
Discussion