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In practical application, there is generally enough imbalance in an amplifier or enough electrical noise  to send the op amp into ____.


A) bias
B) saturation
C) overload
D) inversion

E) A) and B)
F) B) and D)

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B

The addition of the hysteresis loop changes the differential between two inputs of ____.


A) kilovolts
B) millivolts
C) decivolts
D) volts

E) B) and C)
F) None of the above

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The operational amplifier circuit depends on a slight imbalance in the op amp or random circuit noise  to start the oscillator.

A) True
B) False

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True

A millivolt difference between the two inputs is enough to drive the amplifier's output from one state  to the other and it can be corrected with the addition of a ____.


A) distress loop
B) bridge loop
C) hampered loop
D) hysteresis loop

E) A) and B)
F) C) and D)

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If the oscilloscope is connected to a pulse generator, the positive pulse is much longer than the  negative pulse.

A) True
B) False

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An operational amplifier can be used as an oscillator.

A) True
B) False

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The 741 operational amplifier can easily be changed from a square-wave oscillator to a pulse  generator.

A) True
B) False

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If the inverting input becomes slightly more positive than the noninverting input, the output goes ____.


A) out of bounds
B) minimal
C) low
D) high

E) C) and D)
F) B) and D)

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C

A(n) ____ produces a waveform, which has positive and negative pulses of equal voltage and time.


A) oscillator
B) inverter
C) rectifier
D) bridge

E) A) and C)
F) B) and C)

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A voltage difference of only a few hundred millivolts is all that is needed to make the output of the  amplifier go high or low.

A) True
B) False

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