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Page 1
ELTECH 113 Lecture (Quiz # 9, Take-Home)
Due Date : Tuesday, 11-12-2002 (5 :30 pm)
Instructor : Bret Allen
5-7
Instructions : Select the best possible answer to each of the following 26
multiple-choice questions :
1.
As
a.
--~. b .
c.
d.
current passes through a conductor :
the magnetic field aids the current
a magnetic field is developed around it
the wire tries to point north
an electrostatic field opposes the current
2.
When an electromagnet reaches maximum strength, it is considered to be :
a . in field condition
at saturation
c . inhibited
d . at field strength
3.
A rapidly reversing magnetic field causes heat dissipation known as :
a . permeability loss
b . flux loss
c . hysteresis loss
reluctance loss
4.
A conductor's magnetic field is caused by :
a . current flowing through it
b . the voltage potential across it
c . the reactive power developed
d . the apparent power generated
5.
Electromagnetic induction is the generation of :
a . magnetism from electricity
b . electricity from electricity
electricity from magnetism
d . magnetism from magnetism
inductor is rated by a unit named :
Lenz
Henry
c . Farad
d . Ohm
7.
What is one characteristic of an inductor?
a . blocks do
b . develops high reactance to do
c_. develops high resistance to do
passes do
ELTECH 113 Lecture (Quiz # 9, 26- Multiple Choice Questions)
v
Page 2
8 .
Inductance is the ability of a coil to oppose .
a . current
b . voltage change * -7-W2- 5 Z ,$"
S~,67 ~ ~ 1ea?""l
---->O current change
d . voltage
9 .
The formula to determine total inductance when inductors are connected
in parallel is similar to :
j
series resistors
., .~- ~~series capacitors
..v-.._ .,~.~..~. ~. _. ,. . x~
c . parallel capacitors
i
d . series inductors
10 .
Three parallel inductors of 84 mH, 96 mH, and 160 mH,
total inductance of how many millihenrys?
35
11 .
Opposition to current flow without the dissipation of energy is called :
a . resistance
inductive reactance
c . counter EMF
d . impedance
-*Ca.
will provide a
an inductive circuit, reactance will
increase with frequency
decrease with frequency
c . be independent from frequency
d . depend upon the value of XC
13 .
What is the phase angle in a purely inductive circuit?
a . zero degrees
b . 45 degrees
0 degrees
180 degrees
14 .
What is the inductive reactance of a 1 mH coil, when the applied
frequency is 15 kHz?
a . 0 .942 ohms
b . 9 .42 ohms
94 .2 ohms
d . 942 .0 ohms
ELTECH 113 Lecture
(Quiz # 9,
26- Multiple Choice Questions)
Page 3
15 .
What is the impedance of a 1 kHz series RL circuit, when R and XL are
both 1000 o ms?
a . 500 ohms
IDOL) ..i
b . 1000 ohms
-->Z 1414 ohms
d . 2000 ohms
4;
16 .
17 .
What is the total impedance of a series circuit, when the applied
frequency is 455 kHz, R = 15 k ohms, and L = 10 mH?
~'c/ 5 5 Ova)
a . 28 .6 k ohms
aP77
t. = a~7T
32 .2 k ohms
L
l'5 /< -.rL
c . 150 k ohms
x
d . 4500 k ohms
L7 Am i4
=
What is the true power of a 24 Vac parallel RL circuit, when R = 45
a
ohms, and XL = 1100 ohms?
a . 313 .45 watts
b . 44 .96 watts
5 .12 .
c . 22 .3 watts
© 12 .8 watts
,e
18 .
19 .
v °~
3v
.
'`/
The circuit impedance for a 60 Vac single coil circuit that has a coil
current of 4 .47 amps
a . 1 .342 ohms
b . 4 .32 ohms
O 13 .42 ohms
d . 14 .32 ohms
What is the total inductance?
a . 0 .8 mH
b . 10 .5 mH
c . 12 mH
a + L3
.rte....--.
L1
L2
--wrrL--wr n
1mH
8mH
ELTECH 113 Lecture (Quiz # 9,
26- Multiple Choice Questions)
Page 4
20 . What is the total inductance?
4.5 H
10 H
T
c . 13 H
d . 20 H
21 .
703)
(7+i3) J
1-
What is the total inductance?
a . 170 ~LH
b . 172 VH
174 [LH
d . 176 VH
+ /.25(/D)-3
L1 ~
22 .
7H
What is
a . 23 .8
b . 45 .7
c . 1 .92
d . 21 .9
R1
L2
1125mH
the circuit
[ts
ms
s
s
's
L3
135mH
Ld
I
35 (to) -'
175uH
time constant?
" +-
ELTECH 113 Lecture (Quiz # 9, 26- Multiple Choice Questions)
H
/75(/o)-
w
Page 5
23 .
What is the value of R1 if the time constant is 10 milliseconds?
a . 4 .6 Q
,
b . 6 .6 0
8 .6 0
'?L-d . 10 . 6 Q
L,
L V1
125V
T
L1
86mH
!a
/
o/0
24 . What is the inductive reactance?
a. 2 Q
b . 7 .8 0
'T'N 7 8 0
d . 2000 Q
""
5
x
o??T (/ 000 H ,
25 .
What is the impedance of the circuit?
7 . 1 kS2
5 . 8 kQ
L
c . 1 .4 kS2
d . 800 0
7r(A/0 .)) ~ ? j
C
D / "P 45 #
SH ) = 6,4PF4-jL
3 .3kOhm
2 .6H
ELTECH 113 Lecture (Quiz # 9, 26- Multiple Choice Questions)
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Page 6
26 .
hr ,c+qN 7"'a+4
~n<cnl(-~51
What is the power factor for this circuit?
a . 0 .6
b . 0 .7
c . 0 .8
0 .9
3.6k0hm
2.5H
-..
C> 5 (/ Z~. 4 7 m)
,
ELTECH 113 Lecture (Quiz # 9, 26- Multiple Choice Questions)
- END OF QUIZ -
Page 1
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51
ELTECH 113 Lecture (Quiz # 10, Take-Home)
Due Date : Monday (11-18-2002, 5 :30 pm)
Instructor : Bret Allen
Instructions : Select the best possible answer to each of the following 30
multiple-choice questions :
1 .
In a transformer, the primary and secondary coils are magnetically
linked, but they are :
a . always in phase
b . current connected
electrically isolated
d . mechanically connected
2.
When the transformer secondary is not loaded :
_a . secondary voltage increases
no secondary current flows
c . no secondary voltage is present
d . second current increases
3.
A transformer would never be selected to :
_.->O step-up or step-down power
b . isolate stages
c . match impedances
d . step-up or step-down voltage
4 .
All transformers are constructed to ensure :
a . accuracy
efficiency
c. self-inductance
d . isolation
5.
What is the turns ratio for a transformer with 1500 turns in the
primary, and 250 turns in the secondary?
0 .16
a 5 nVo
- 1r
b. 3 .0
f3
S
'~
-c
A1
I
d . 16 .00
e"
6 .
What is the secondary winding for a transformer when 120 volts is
applied to a 2400-turn primary to produce 7 .5 Vac at the secondary?
a . 75 turns
1l
G (vN
=12-0V
F__
/V
V
P
P
c . 900 turns
~'
d . 1920 turns
P
ELTECH 113 Lecture
(Quiz # 10,
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30-Multiple Choice Questions)
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Page 2
7.
What is the number of turns in a primary winding, when the voltage
applied to a transformer input is 24 Vac with a 225-turn secondary
outputt of 360 volts? G
C2 A4
dM
V
b . 3325
c . 5400
d . 9 .38
8.
9.
V
Suppose the primary of a 4 :1 turns transformer draws 5 W, what is the
secondary power?
5 .0 watts
""'
`
-'
b . 1 . 2 rT
Y
flV"f
N)r
c . 9 .5 watts
d . 20 .0 mW
What is the turn ratio?
2
TrE'. b . 1 /2
c. 1
d. 4
1 :2
a
T1
10 .
What is the turn ratio?
a. 5
7...'." , i
2 .5
.5
_.,
S
0,6
T1
11 . Voltage drops around a series RLC circuit, when added together will
equal a total :
a . less than the source voltage value
b . the same as the source voltage value
c . three times the source voltage value
-... *#d more than the source voltage value
ELTECH 113 Lecture (Quiz # 10, 30-Multiple Choice Questions)
a
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Page 3
12 .
What is the total impedance of a series RLC circuit if XL = 40 ohms, R
70 ohms, and XC = 90 ohms?
2.
a . 70 ohms
('X`--xc)
;F
86 ohms
` j R 4; +
c . 121 ohms
d . 140 ohms
13 .
Voltage lags current in an RLC circuit that acts :
capacitively
/MA
. resistively
C7 14E~ SCC
c . inductively
d . resonantly
14 . What is the resistor voltage drop in a 20 V, 300 Hz series RLC circuit
when XL = 87 ohms, XC = 77 ohms, and R = 10 ohms?
a . 1 .00 volts
o
b . 1 . 41 volts
c . 4 .0 volts
. /'Ll . 1 y -rL.
® 14 .14 volts
a
J
V,
2 . a ~4
-IT
T
15 . In
current
a . leads VL
b . is in phase with VR
-AYI
R
c . is in phase with VC
lags VL
16 .
-=
In an RLC circuit true power equals :
a . VT x RT
I2 R
c.
VS
x I
d . PR/PA
17 . What is the total current in a parallel RLC circuit when IX = 3 A and IR
= 2 amperes? "~-L
a . 1 .00 A
3 .61 A
R
c . 5 .0 A
d . 6 .31 A
,,
Z
18 .
T
--
What is the current phase angle for a parallel RLC circuit when IL =
15 .3 A, IC = 0 .43 A, and IR = 3 .5 A?
76 .7 degrees
~5~ 3 ~ " ~
b . -4 .25 degrees
c . 888
.
degrees
d . -76 .7 degrees
= Z '-' G "`
ELTECH 113 Lecture (Quiz # 10, 30-Multiple Choice Questions)
':!5o 14
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Page 4
19 .
When XC = XL the circuit :
a . draws maximum current
W is at resonance
c . applied voltage is zero
d . draws minimum current
20 .
At any resonant frequency, what voltage is measured across the two
series reactive components?
a . applied voltage
b . reactive voltage
zero voltage
d . VL + VC voltage
21 .
Series resonance current is high because :
a . source voltage is equal at each component
b . circulating current is high
circuit impedance is resistive
zero volts is across the tank
22 .
23 .
What is the Q of a series circuit that resonates at 6 kHz, has equal
reactance of 4 k ohms each, and a resistor value of 50 ohms?
a . .001
lP= 5o_st., .
b . 50
(Z 80
d . 4 .0
r= 4. 'yk -.li-
What is the resonant frequency of an RLC circuit when C = 9 .05 [LF, R =
100 ohms, and L = 2 .8 MH?
a . 0 .001 Hz
--0 1 .0 kHz
c . 6 .28 MHz
d . 9 .99 Hz
24 . At resonance, the term bandwidth includes all frequencies that allow
what percentage of maximum current to flow?
a . 50
b . 62 .3
c 70 .7
95 .3
25 . What size resistor is needed to produce a Q of 4 .5 in a parallel
resonant circuit, when the reactance is 1414 ohms?
a . .003 ohms
b . 2828 ohms
c . 6364 ohms
YV 314 .22 ohms
ELTECH 113 Lecture (Quiz # 10, 30-Multiple Choice Questions)
Page 5
26 . When a full band of frequencies is allowed to pass through a filter
circuit to the output, the resonant circuit is called a :
a . low pass filter
band pass filter
c . band stop filter
d . high pass filter
27 . Three ohms of reactance and four ohms of resistance would be expressed
in rectangular form as :
a . -4 +j3
b . -4 -j3
~
c 4 -j3
9 Z '7-Iu
4 +j3
28 .
29 .
The complex plane applies to ac calculations when resistive values are
represented horizontally, while reactive values are~,displayed :
on the imaginary number line
&MACa)N~~
b . with a vertical -j operator
c . with a vertical +j operator
d . on the real number line
V
What is the resonant frequency?
214 .6 Hz
b . 215 .6 Hz
c . 216 .6 Hz
d . 217 .6 Hz
e?Tr
~a75oN)~J~ .7X
ELTECH 113 Lecture (Quiz # 10, 30-Multiple Choice Questions)
Page 6
30 . What is
a . 675 .6
678 .6
c . 681 .6
d . 684 .6
the resonant frequency?
Hz
Hz
Hz
Hz
Ll
25mH
ELTECH 113 Lecture (Quiz # 10, 30-Multiple Choice Questions)
-END OF QUIZ-
Page 1
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ELTECH 113 Lecture (Quiz #11,
Date : Thursday, 11-21-02
Instructor : Bret Allen
r-
LG z,-l
In-Class)
Instructions :
Select the best possible answer to each of the following (23)
multiple-choice questions :
1 .
What principle is involved,
a . mutual inductance
b . coupling
c . impedance matching
___>O self-inductance
2 .
when a coil induces a voltage within itself?
In a transformer, the primary and secondary coils are magnetically
linked, but they are :
a . always in phase
b . current connected
lectrically isolated
d . mechanically connected
.
In a transformer, what action will occur within the primary current,
the secondary magnetic field increases?
--~ a~ Ip will increase .
b . Ip will be canceled .
c . Ip will remain the same .
d . Ip will decrease .
4 .
5 .
What produces secondary voltage in a transformer?
a . the secondary counter EMF
magnetic flux cutting secondary windings
c . secondary winding direction
d . the winding ratio
When the transformer secondary is not loaded :
a . secondary voltage increases
~. no secondary current flows
c . no secondary voltage is present
d . second current increases
6 .
A transformer would never be selected to :
---~~ step-up or step-down power
b . isolate stages
c . match impedances
d . step-up or step-down voltage
ELTECH 113 Lecture
11-21-02)
(Quiz #11,
In-Class,
23- Multiple Choice Questions,
if
Page 2
7.
8.
Which coil would be used as a step-up transformer primary,
100 more turns than coil number 2?
a . coil windings must be the same
b . coil 1
c . coil ratio is too small
coil 2
/d0 0
.2
if coil 1 has
What is the voltage ratio of a transformer with 20 Vac applied,
secondary voltage of 4 Vac?
a . 80 .0
b . 5 .0
c . 0 .5
0 .2
and a
9 .
What is the number of turns in a primary winding, when the voltage
applied to a transformer input is 24 Vac with a 225-turn secondary
output of 360 volts?
.--'aQ15
b . 3325
c . 5400
d . 9 .38
10 .
11 .
What is the secondary current for a transformer primary that draws 15
mA, when t e turns relationship is 7 .5 :1?
a . 2 .0 mA
Z =(?
b . 7 .5 MA
c . 15 .0 mA
112 .5 MA
=
P
7.5 '. 2
5 X75m A)
What is the transformer output to input relationship, when on a
schematic, solid dots are placed at the top of both the primary and
secondary transformer windings?
in phase
b . 45 degrees out of phase
c . 90 degrees out of phase
d . 180 degrees out of phase
.."4d>
12 .
Fixed transformers have :
a . a center-tapped secondary
b . multiple windings
turn ratios that cannot be changed
d . a multiple-tapped secondary
(0
ELTECH 113 Lecture
11-21-02)
(Quiz #11,
In-Class,
23- Multiple Choice Questions,
Page 3
13 .
When a transformer secondary lead has been connected to a middle loop
that is not an end connector, it is called a :
a . multiple-tapped secondary
-->Q center-tapped secondary
c . multiple winding secondary
d . single winding secondary
14 .
When transformer secondary leads have been connected to several
different loops that are not end connectors, the secondary is
considered :
---->Q multiple-tapped
b . center-tapped
c . multiple-wound
d . single-wound
15 .
What is the smallest resistance that can be connected to the secondary
of a 2 kVA, 440/120, 60 Hz transformer?~
,
~7
a . 0 .5 ohms
,'Tnl " vd T
b . 2 .0 ohms
V
Z
~c . 7 .4 ohms
Irv
d . 16 .6 ohms
P Zavv
~_GZo~
16 .
17 .
Transformer power loss does not occur as a result of :
a . eddy currents
b . hysteresis
electrostatic discharge
d . magnetic leakage
MIAJ,
~ 7, dP..n..
When internal transformer loss is present, power delivered from the
secondary is :
a . increased
b . more than primary input power
less than primary input power
d . following turns ratios
18 . What is the primary voltage?
-yl a© 5 .5 volts rms
b . 9 .8 volts peak
c . 6 .9 volts rms
d . 11 volts peak
v
3
3 ( 7,347
ELTECH 113 Lecture (Quiz #11,
11-21-02)
5. 5
In-Class, 23- Multiple Choice Questions,
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GMs
Page 4
19 .
What is the primary voltage?
a . 157 volts peak
b . 111 volts rms
c . 4 .5 volts peak
® 2 .3 volts rms
1~
R =
20 .
What is the secondary current?
0 .83 mA rms
b . 2 .9 mA rms
c . 1 .08 mA peak
d . 4 .1 mA peak
N,/
S
ors
3
v
441 S
=7 ..L = .?
s
/
C/, 5 5 YM4
P
D,
m ~4
,_-_
21 . What is the primary power?
16 .9 watts peak
11 .9 watts peak
c . 4 .2 watts peak
d . 3 .0 watts peak
Oe
.., ~a
.r
.o6oV)
/ D 0 0 .&
= Ps (41 S )
f
?
r
s (~~,~ .)
E/' q /'/ =
w~r7
-
S (44,S~
I. &1 7 5 ~ f ,
P3
Ad
PP
)
,1 . 7 A/.47rs
ELTECH 113 Lecture (Quiz #11, In-Class, 23- Multiple Choice Questions,
11-21-02)
Page 5
22 . What is wrong with this circuit?
a . The primary is open .
The secondary is open .
c . The primary has a section short .
d . The secondary has a section short .
0.000
23 . What is wrong with this circuit?
a . The primary is open .
b . The secondary is open .
c . The primary has a section short .
,.-..* ®The secondary has a section short .
r/~~ i
Ayr
27
S
°
Alp
''~3
7, l
oc . G 53 A
ELTECH 113 Lecture (Quiz #11, In-Class, 23- Multiple Choice Questions,
11-21-02)
-END OF QUIZ-
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Page 1
ELTECH 113 Lecture (Quiz # 12, Take Home)
Due date : Monday, 12-9-2002 (5 :30 pm)
Instructor : Bret Allen
Instructions : Select the best possible answer to each of the following 38
multiple choice questions :
/
1 .
Materials that accomplish conduction with electron and hole pairs are
called :
a . insulators
b . carriers
c . electrodes
semiconductors
2.
Optoelectronic devices sense :
a . temperature
b . magnetism
light
d . heat
3.
What is the difference between a conductor and a semiconductor?
a . electron flow
b . magnetic attraction
c . static charge
hole and electron flow
4.
The pulling of electrons with equal but opposite force to hold silicon
atoms together is called :
a . hole flow
b . magnetic attraction
c . static charge
© covalent bonding
What must be done to improve the conductivity of intrinsic material?
a . bonding
b . heating
--4oQ doping
d . cooling
5.
6.
What is the term used to explain that when heat is applied to extrinsic
material, the conductivity figure of the material increases?
a . positive temperature coefficient
b . increased resistivity
--~i © negative temperature coefficient
d . decreased resistivity
ELTECH 113 Lecture
(Quiz # 12,
38-Multiple Choice questions,
12-9-02)
Page 2
7.
When constructing a pn junction, the name of the point where the two
oppositely doped materials come in contact is called the :
a . depletion region
-)~ 'b junction
c . avalanche region
d . knee
8.
A diode constructed of germanium will have a barrier potential of :
a . 0 .03 V
b . 0 .07 V
0 .3 V
d . 0 .7 V
9.
A pn junction acts like an insulator and is equivalent to an open switch
when :
a . forward biased
b . trivalent doped
reverse biased
d . pentavalent doped
10 . When was the first transistor invented?
a . 1942
b . 1944
c . 1946
© 1948
11 . When was the first integrated circuit invented?
a . 1956
1959
c . 1962
d . 1965
12 . What can a semiconductor sense?
-40 Voltage
b . Current
/
c . Pressure
d . All the above
13 .
If a forward-biased voltage of 0 .7V is read across a diode it is usually
constructed of :
a . carbon
-&s(M> silicon
c . germanium
d . lead
ELTECH 113 Lecture (Quiz # 12, 38-Multiple Choice questions,
12-9-02)
Page 3
14 .
If the manufacturer's current specifications are exceeded, the diode
will probably :
a . have a larger voltage drop
b . increase its internal resistance
c . coruiuct slower
M be destroyed
15 . How many diodes are used by a full-wave center-tapped (CT)
rectifier circuit?
a. 1
® 2
c. 3
d. 4
16 .
"
17 .
transformer
Because all of the ac input is not converted to its do load, a power
supply is not 100% :
efficient
b . regulated
c . reliable
d . free of ripple
Where
a . The
The
c . The
d . The
D1
is the
anode
anode
anode
anode
anode?
is at A .
is at B .
is at both A and B .
is neither A or B .
ELTECH 113 Lecture (Quiz # 12, 38-Multiple Choice questions,
12-9-02)
Page 4
18 .
Which
a . D1
b . D1
c . D2
d . D1,
diodes are forward biased?
and D2
and D3
3 'ONIand D3
V]
D2 and D3
Eo
VCC SV
19 . What is the current through the silicon diode?
a . 12 mA
b . 11 . 7 mA
t
J
V,
31 ,4 3E4-2
c . 10 .3 mA
0 mA
r
~~ 5
R1
a
1kOhm
T
ELTECH 113 Lecture (Quiz # 12, 38-Multiple Choice questions,
12-9-02)
Page 5
20 . What is the current through the germanium diode?
a . 12 mA
11 .7 MA
,.
/e ~
..
c . 11 . 3 mA
""°
d . 0 mA
f
1
l 2V
R1
-NV\1kOhm
D1
T
21 .
What is the current through R1?
a . 12 mA
b . 11 .3 MA
(:> 6 MA
d . 0 mA
R1
IVaTF,
D1
T
6 V Zener
~G om A.4Ae
Ft-t
'TO
.5roo ~ )
ELTECH 113 Lecture (Quiz # 12, 38-Multiple Choice questions,
12-9-02)
Page 6
22 .
What is wrong with this power supply?
a . C1 is open
W00 Zi is open
c . D1 is shorted
d . Nothing
MY
Oscilloscope-MCI
. . . . : . . . . . . . . . : . . . . . . . . . .: . . . . . . . . . : . . . . . . . . . : . . . . . . . . . .: . . . . . . . . . : . . . . . . . . .
. . . . . :. . . . . . . . . . :. . . . . . . . . . : . . . . . . . . . :. . . . . . . . . . :. . . . . . . . . . : . . . . . . . . .:. . . . . . . . . .
L.
....................
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. .. .. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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-Timebase
Scale F157711-mv
X position Fy
I
T2-T1
T,
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VA2-VAI
W2
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Channel A~ Channel B
Scale 10-\#DiY positionFDO
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J717Am
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Scale F\#_6-iY position F0 .0
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pr
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ELTECH 113 Lecture (Quiz # 12, 38-Multiple Choice questions,
12-9-02)
Page 7
23 .
How many junctions in a bipolar
r transistor?
a. 1
-+
N Ar'"" tk
2
c . 3
d. 4
24 .
25 .
26 .
27 .
Z
A bipolar transistor has a total of :
a . two similarly doped regions
® three alternately doped regions
c . two alternately doped regions
d . three similarly doped regions
With voltage controlled switching, one situation is saturation while the
other is :
cut-off
maximum current
c . rectification
d . maximum voltage
With a properly biased transistor, what percentage of current flow is
through the base circuit?
© 5
b . 33
c . 66
d . 95
Which
a . IC
b . IB
c . IE
transistor current formula is correct?
= IB + IE
= IC + IE
= IB - IC
IB = IE - IC
28 . Saturation in a transistor means that a bias increase will :
-~~ no longer increase collector current
b . only increase collector current proportionately
c . destroy the depletion region
d . cut off the device
ELTECH 113 Lecture
(Quiz # 12,
38-Multiple Choice questions,
12-9-02)
Page 8
29 .
Which leads are the base, emitter, and collector on a bipolar junction
transistor?
b . II
c . III
d . IV
I.
II .
III.
30 . What is the emitter current?
a . 6 .7 mA
b . 7 MA
c . 5 .6 mA
d . 6 .5 MA
r
'
V - v, "T V
31 .
How many junctions in a JFET?
1
b. 2
c. 3
d. 4
32 .
A field effect transistor is a device controlled by :
a . frequency
b . current
voltage
power
ELTECH 113 Lecture (Quiz # 12, 38-Multiple Choice questions,
12-9-02)
51mA
Page 9
33 . Where are the gate, source, and drain leads?
II
c . III
d . IV
I.
II.
J
G
III.
JFET
G
S
IV.
jJFET
S -0-I-,
D
jJFET
G -*I
D
34 . Which lead is the output for this operational amplifier?
a. A
b. B
)C
d. D
B
ELTECH 113 Lecture (Quiz # 12, 38-Multiple Choice questions,
12-9-02)
Page 1 0
35 . What is the voltage gain for this circuit?
_..ty © - 8 . 3
b . 8 .3
c . -18 .4 db
d . 20 db
I 51L
r" rw~r
Vin
36 .
What is the voltage gain for this circuit?
9 .3
b . - 9 .3
c . 18 .4 db
d . - 18 .4 db
ELTECFI 113 Lecture (Quiz # 12, 38-Multiple Choice questions,
12-9-02)
Page 1 1
37 .
What is the output voltage?
4 .95 Vrms
b . -4 .95 Vrms
c . 3 .50 Vrms
d . -3 .50 Vrms
VOUt
ELTECH 113 Lecture (Quiz # 12, 38-Multiple Choice questions,
12-9-02)
Page 1 2
38 .
What is the output signal of this circuit?
a. I
II
c . III
d . IV
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ELTECH 113 Lecture (Quiz # 12, 38-Multiple Choice questions,
-END OF QUIZ-
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12-9-02)