Above the critical frequency () of a low-pass filter, the output voltage gain _______.

doubles for every 1 kHz increase in frequency

In order to sustain oscillations in a feedback oscillator, the gain should be _________ so the _______.

increased, is much greater than one

If the value of resistor in an averaging amplifier circuit is equal to the value of one input resistor divided by the number of inputs, the output will be equal to

the average of the individual inputs

the inverted sum of the individual inputs

the sum of the individual inputs

the inverted average of the individual inputs

Explore topic-wise MCQs in Electronics.

This section includes 11 Mcqs, each offering curated multiple-choice questions to sharpen your Electronics knowledge and support exam preparation. Choose a topic below to get started.

1.	The feedback component in an is a capacitor.
A.	True
B.	False
Answer» B. False

Discussion

2.	When the capacitance in an increases, the critical frequency decreases.
A.	True
B.	False
Answer» B. False

Discussion

3.	For a to produce a sustained sine-wave output, the phase shift around the positive feedback loop must be greater than 0°.
A.	True
B.	False
Answer» C.

Discussion

4.	A two-pole active filter produces a roll-off rate of .
A.	True
B.	False
Answer» C.

Discussion

5.	A is a type of comparator circuit.
A.	True
B.	False
Answer» B. False

Discussion

6.	Above the critical frequency () of a low-pass filter, the output voltage gain _______.
A.	does not change
B.	doubles for every 1 kHz increase in frequency
C.	increases
D.	decreases
Answer» E.

Discussion

7.	In order to sustain oscillations in a feedback oscillator, the gain should be _________ so the _______.
A.	reduced, equals one
B.	reduced, is less than one
C.	increased, is more than one
D.	increased, is much greater than one
Answer» B. reduced, is less than one

Discussion

8.	When used as a , an op-amp is wired in a closed-loop configuration.
A.	True
B.	False
Answer» C.

Discussion

9.	Initially, the closed-loop gain () of a Wien-bridge oscillator should be
A.	< 3
B.	> 3
C.	0
D.
E.	1
Answer» C. 0

Discussion

10.	The formula shows that for a given capacitor, if the voltage changes at a constant rate with respect to time, the current will
A.	increase
B.	decrease
C.	be constant
D.	decrease logarithmically
Answer» D. decrease logarithmically

Discussion

11.	If the value of resistor in an averaging amplifier circuit is equal to the value of one input resistor divided by the number of inputs, the output will be equal to
A.	the average of the individual inputs
B.	the inverted sum of the individual inputs
C.	the sum of the individual inputs
D.	the inverted average of the individual inputs
Answer» E.

Discussion

Explore topic-wise MCQs in Electronics.

The feedback component in an is a capacitor.

When the capacitance in an increases, the critical frequency decreases.

For a to produce a sustained sine-wave output, the phase shift around the positive feedback loop must be greater than 0°.

A two-pole active filter produces a roll-off rate of .

A is a type of comparator circuit.

Above the critical frequency () of a low-pass filter, the output voltage gain _______.

In order to sustain oscillations in a feedback oscillator, the gain should be _________ so the _______.

When used as a , an op-amp is wired in a closed-loop configuration.

Initially, the closed-loop gain () of a Wien-bridge oscillator should be

The formula shows that for a given capacitor, if the voltage changes at a constant rate with respect to time, the current will

If the value of resistor in an averaging amplifier circuit is equal to the value of one input resistor divided by the number of inputs, the output will be equal to

In order to sustain oscillations in a feedback oscillator, the gain should be ___ so the _.