Multiple Choice Quiz


1.	Find the CMRR for an amplifier with a differential gain of 40 and a common mode gain of 0.02.
	A)	98 dB
	B)	66 dB
	C)	54 dB
	D)	49 dB



2.	Determine the quiescent dc voltage at OUT 1 for the circuit below:
	A)	7.12 V
	B)	6.54 V
	C)	5.81 V
	D)	3.98 V



3.	Identify the circuit shown below:
	A)	operational amplifier
	B)	active filter
	C)	differential amplifier
	D)	none of the above



4.	Determine the large-signal bandwidth for the circuit below assuming Vin is given as an RMS value and an op-amp with a slew rate of 0.2 volts per microsecond:
	A)	50 kHz
	B)	15 kHz
	C)	10 kHz
	D)	8.85 kHz



5.	Determine the phase relationship between Vin and the signal across RL for the circuit shown below:
	A)	they are phase opposites
	B)	180 degrees
	C)	in-phase
	D)	none of the above



6.	Which of the following circuits uses positive feedback?
	A)	subtracting amplifier
	B)	summing amplifier
	C)	integrator
	D)	Schmitt trigger



7.	Determine the small-signal bandwidth for the circuit below assuming an op-amp with a gain-bandwidth product of 1 MHz:
	A)	66.7 kHz
	B)	55.1 kHz
	C)	38.9 kHz
	D)	25.5 kHz



8.	For the circuit shown below, what is the phase relationship between IN 1 and OUT 2?
	A)	depends on the signal at IN 2
	B)	they are phase opposites
	C)	180 degrees
	D)	in-phase



9.	Determine the voltage across RL for the amplifier shown below:
	A)	3.535 V
	B)	2.978 V
	C)	2.222 V
	D)	1.906 V



10.	Identify the circuit shown below:
	A)	Schmitt trigger
	B)	comparator
	C)	inverting amplifier
	D)	non-inverting amplifier

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