A ______ is not a multivibrator. one-shot flip-flop VCO bistable

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Home ‣ Electronics ‣ Operational Amplifiers Comments

Question
A ______ is not a multivibrator.
Options
A. one-shot
B. flip-flop
C. VCO
D. bistable

Correct Answer

one-shot

Operational Amplifiers problems

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1. An oscillator whose frequency can be controlled by an input "control voltage" is called a(n) ______ .
Options
A. PLL
B. Schmitt trigger
C. VCO
D. S-R latch

Discuss

Correct Answer: VCO

2. The 555 timer can be connected to operate a(n) ___________.
Options
A. astable multivibrator
B. bistable multivibrator
C. monostable multivibrator
D. astable multivibrator and a monostable multivibrator

Discuss

Correct Answer: astable multivibrator and a monostable multivibrator

3. The resistors R_f and R_i in an op-amp circuit control ______ .
Options
A. positive feedback and current gain
B. negative feedback and power gain
C. negative feedback and voltage gain
D. open and closed loop gain

Discuss

Correct Answer: negative feedback and voltage gain

4.

The given circuit is ___.
Options
A. an inverting amplifier
B. a noninverting amplifier
C. a voltage follower
D. a differential amplifier

Discuss

Correct Answer: a noninverting amplifier

5.
The voltage gain is ______ for the amplifier in the given circuit.
Options
A. ?4
B. ?5
C. ?6
D. ?7

Discuss

Correct Answer: ?6

6. If the input to a comparator is a sine wave, the output is a(n) _________.
Options
A. ramp voltage
B. sine wave
C. sawtooth wave
D. rectangular wave

Discuss

Correct Answer: rectangular wave

7. A circuit that has an output equal to the algebraic sum of the inputs is called a(n) ______ .
Options
A. integrator amplifier
B. summing amplifier
C. differential amplifier
D. voltage multiplier

Discuss

Correct Answer: summing amplifier

8.

The feedback resistor has a value of ______ in the given circuit
Options
A. 2 kΩ
B. 10.5 kΩ
C. 21 kΩ
D. 40 kΩ

Discuss

Correct Answer: 40 kΩ

9. A PLL can be used as a(n) ___________.
Options
A. series voltage regulator
B. frequency multiplier
C. relaxation oscillator
D. Schmitt trigger

Discuss

Correct Answer: frequency multiplier

10. Switching voltage regulators have ______ than linear regulators.
Options
A. longer life
B. simpler circuitry
C. greater efficiency
D. lower cost

Discuss

Correct Answer: greater efficiency

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A ______ is not a multivibrator.

Operational Amplifiers problems

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