
EN 2-3
Quiz
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Engineering
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University
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Practice Problem
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Medium
Christian Mina
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35 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
For a beta of 120, compute the collector current of the given circuit
2.26 mA
2.25 mA
2.24 mA
2.23 mA
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Given VCC = 10 V, RC = 4.7 kΩ, RB = 250Ω, RE = 1.2 kΩ and β = 90 for the circuit shown, find:
(a) IB
(b) IC and
(c) VCE
IB = -11.91 uA, IC = 1.07 mA, VCE = 3.687 V
iB = -11.91 uA, IC = 1.07 mA, VCE = 3.688 V
B = -11.91 uA, IC = 1.07 mA, VCE = 3.689 V
B = -11.91 uA, IC = 1.07 mA, VCE = 3.690 V
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Calculate the value of V6 and I5 for the circuit shown. Assume that β has a very large value.
V6 = -4.475 V and I5 = 0.965 mA
V6 = -4.475 V and I5 = 0.966 mA
V6 = -4.475 V and I5 = 0.967 mA
V6 = -4.475 V and I5 = 0.968 mA
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Find V_2 if it assumes that the given circuit has a very large beta.
V_2 = -0.6 V
V_2 = -0.7 V
V_2 = -0.8 V
V_2 = -0.9 V
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Find the value of VE, β, α, and VC for the given circuit if a measurement indicates that base voltage is -1.5V.4
VE = -2.2 V, β = 3.53, α = 0.779, and VC = 3.7 V
VE = -2.2 V, β = 3.53, α = 0.779, and VC = 3.8 V
VE = -2.2 V, β = 3.53, α = 0.779, and VC = 3.9 V
VE = -2.2 V, β = 3.53, α = 0.779, and VC = 4.0 V
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
For the JFET in the figure shown, VGS(off) = - 4V and IDSS = 12 mA, Determine the minimum value of VDD required to put the device in the constant-current region of operation.
VDD(min) = 10.71 V
VDD(min) = 10.72 V
VDD(min) = 10.73 V
VDD(min) = 10.74 V
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The data sheet of a JFET gives the following information:
IDSS = 3 mA
VGS(off) = - 6V
gm (max) = 5,000 uS.
Determine the transconductance for VGS = -4V and find drain current ID at this point.
gm = 1.67 mS and ID = 0.33 mA
gm = 1.68 mS and ID = 0.33 mA
gm = 1.69 mS and ID = 0.33 mA
gm = 1.70 mS and ID = 0.33 mA
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