Category: Operational Amplifier

A. r’e
B. 2r’e
C. r’e/2
D. 2RE

A. has a voltage gain of 1
B. is noninverting
C. has no feedback resistor
D. has all of these

A. is a part of an Op-amp
B. has one input and one output
C. has two outputs
D. answers (A) and (B)

A. doubles
B. drops to 12.5
C. remains at 25
D. increases slightly

A. smaller than differentail voltage gain
B. equal to differential voltage gain
C. greater than differential voltage gain
D. none of the above

A. difference between two emitter currents
B. sum of two emitter currents
C. collector current divided by current gain
D. collector voltage divided by collector resistance

A. opposite polarity signals are applied to the inputs
B. the gain is one
C. the outputs are of different amplitudes
D. only one supply voltage is used

A. 100,000
B. 1000
C. 101
D. 100

A. both inputs are grounded
B. the outputs are connected together
C. an identical signal appears on both the inputs
D. the output signal are in-phase

A. reduces the voltage gain of an Op-amp
B. makes the Op-amp oscillate
C. makes linear operation possible
D. answers (A) and (B)