1-The tail current of a diff amp is a-Half of either collector current. b-Equal to either collector current. c-Equal to difference in base currents. OEqual to emitter current.
1-The tail current of a diff amp is a-Half of either collector current. b-Equal to either collector current. c-Equal to difference in base currents. OEqual to emitter current.
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
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Transcribed Image Text:1-The tail current of a diff amp is
a-Half of either collector current.
b-Equal to either collector current.
c-Equal to difference in base currents.
Equal to emitter current.
2-The voltage gain of a diff amp with an unloaded differential output is equal to Re divided by
a-re.
b-r/2.
c-2r.
@RE
3-A-commmon-mode signal is applied to
a-The nan inverting input.
b-The inverting input.
©Both inputs.
d-The top of tail resistance.
4-The common-mode rejection ratio is
a- Very low.
b- Often expressed in decibels.
c- Equal to the voltage gain.
O Equal to the common- mode voltage gain.
5- The input offset current is usually
a- Less than the input bias current.
b- Equal to zero.
c- Less than the input offset voltage.
d- Unimportant when a base resistance is used.
6-With both bases grounded ,the only offset that produces an error is the
a- Input offset current.
b- Input bias current
c- Input offset voltage.
OB.
7-A compensating capacitor prevents
O voltage gain.
b- Oscillation.
c- Input offset current.
d- Power bandwidth.
8-An op-amp has an open base resistance. The output voltage will be
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