AC Amplifiers with Single Supply Voltage MCQ’s

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This set of Linear Integrated Circuits Multiple Choice Questions & Answers (MCQs) focuses on “AC Amplifiers with Single Supply Voltage”.

1. Given below are the circuits connected to the non-inverting input terminal of AC amplifier. Choose the circuit which produces positive output swing equal the negative?
a)
Find input terminal of AC amplifier from the given diagram
b)
Find the positive output swing and dc level from the given diagram
c)
Find the voltage divider at  inverting input from the given diagram
d) None of the mentioned

2. What is the output waveform at the point VO1 in the given circuit? (Take R1=1kΩ and RF=5kΩ)
Find the output waveform at the point VO1 from the given circuit
a)
Find the AC output from the given diagram
b)
Input is applied at inverting terminal so the AC output will be riding on a DC level
c)
Find DC level of Vcc/2 from the given diagram
d)
Find the input applied at inverting terminal from the given diagram

3. How an AC amplifier can be powered by a single supply voltage, produces voltage swing?
a) By inserting a voltage divider at the inverting input
b) By inserting a voltage divider at the non-inverting input
c) By inserting a voltage divider at the output
d) By inserting a voltage divider at the feedback circuit

4. The input waveform of an AC non-inverting amplifier with single supply is given below. Find the output waveform?

Find output waveform which has input waveform of an AC non-inverting amplifier from circuit

a)
Find the output waveform from the given diagram
b)
Find the coupling capacitor from the given diagram
c)
Find output blocks from the given diagram
d)
Find the same phase of input signal from the given diagram

5. Determine the lower cut-off frequency of the circuit.

Determine the lower cut-off frequency of the circuit

a) 21.3Hz
b) 12.15Hz
c) 1.35Hz
d) None of the mentioned

6. Find the maximum output voltage swing of an AC inverting amplifier using op-amp 741C?
a) +15Vpp
b) ±15Vpp
c) ±13Vpp
d) +13Vpp

7. In differential op-amp configuration a subtractor is called as
a) Summing amplifier
b) Difference amplifier
c) Scaling amplifier
d) All of the mentioned

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