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501- U7Page 1
ELTECH 113 Lecture (Quiz #3, In-Class)
Date : 9-1.2-2002
Instructor : Bret Allen
Instructions : Select the BEST possible answer for each of the following
twenty-six (26) multiple choice questions .
1.
Parallel connected components form :
branches
b . open circuits
c . short circuits
a voltage divider
a.
2.
A parallel circuit differs from a series circuit in that a parallel
circuit has :
a . no path for current flow
b . fewer paths for current flow
c . one path for current flow
more than one path for current flow
3.
What is the total voltage available when :-three 12-vc1t, 2-amp batteries
are conner,~ed in parallel?
a . 4 volts
12 volts
1aV ( T'
. 24 volts
d . 36 volts
191,
4.
Which is considered as the common reference for a parallel circuit ,
a . current
b . power
c . resistance
voltage
5.
Which formula is correct for a circuit with two resistors,
parallel?
It = Il + 12
b . Rt = R1 + R2
c . Vt = V1 + V2
d . Vt = 1/V1 + 1/V2
6.
The total resistance in a parallel circuit is :
-400less than the smallest resistance
b . equal to the average resistance
c . eaual to the sum of the resistances
d . more than the largest resistance
ELTECH 113 Lecture (Quiz #3, 26-multiple choice questions)
R.1 and R2,
Page 2
7.
If a resistor is added in parallel to a working circuit,
resistance will :
a . increase
decrease
c . remain the same
d . cannot tell
the total
8.
What is the total resistance of a 45 ohm and a 36 ohm resistor in
parallel?
. .
ohms
a. 9
7- f
, f
_
--320 ohms
y5~
3~1L
40 .5 ohms
e1
l 4
,
d . 81 ohms
34.)
rn
~5 f 3~
9.
After proper construction on a protoboard, the total measured resistance
of a 3 k ohm, 4 k ohm, and 12 k ohm resistors in parallel should be :
1 .5 k ohms
b . 2 k ohms
c . 6 .3 k ohms
d . 19 k ohms
3000
'4Yvoc3
10 .
What is the total resistance of four 1'k ohm resistors connected in
parallel?
a . 200 ohms
250 ohms
c . 400 ohms
d . 4 k ohms
11 .
What is the total resistance of a 154 ohm resistor and a 42 ohm resistor
connected in parallel?
D33 ohms
S y~
b . 36 ohms
.
c . 98 ohms
AV
T
a
l 5 4,? r-L 4" 4.? _S_
t
d . 196 ohms
33-03 3-0--
12 .
=
-
What is Rt for parallel connected 1 .8 k ohm, 2 .1 k ohm, and 2 .8 k ohm
resistors?
,a 670 ohms
b~ 720 ohms
c . 2 .23 k ohms
8 KSz_. j
07.1 K -Cid . 6 .7 k ohms
11
.
a.
)eT
ELTECH 113 Lecture (Quiz #3, 26-multiple choice questions)
Page 3
I-S71
3K
sK
yk
~~<
13 . - If three 4 k ohm resistors were connected in parallel with four parallel
3 k ohm resistors, what would be the total resistance?
a . 240 ohms
b~ 480 ohms
c . 6 k ohms
d . 24 k ohms
14 .
What is the total resistance of fifteen 2 M ohm resistors connected in
arallel?
a133 k ohms
b . 300 k ohms
c . 750 k ohms
d . 30 M ohms
15 .
If two parallel connected resistors dissipate 6 watts and 10 watts of
power, then what is the total power loss?
a . 3 .75 watts
^_
(,J 'f" 1 L-> W b 4 watts
16 watts
TvTA L
d . 60 watts
a
the
power
loss
of
a
100
ohm
16 . What is
resistor that develops 5 V across
it?
a
a . 5 0 mW
V
(LE; V)
.-*0 250 mW
= D, a S
c . 500 mW
j O O -(L_
d . 500 W
17 .
When parallel resistors are of three different values, which has the
greatest power loss?
1l
the smaller resistance
_
y
`.r.
b . the larger resistance
c . they have the same power loss
d . voltage and resistance values are needed
18 .
How much power is dissipated when four 4 .7 M ohm resistors a-e parallel
connected to 94-volts?
a . 2 0 [tW
M-D-~-:Z . / 75tit-IL
b. _
80 [xW
rx
1 .88 MW
"Y
7 .52 mW
T
,-
~, /
s
l0)
ELTECH 113 Lecture (Quiz #3, 26-multiple choice questions)
Page 4
19 .
If while troubleshooting parallel resistors one of them opens, what
happens to total resistance?
O it increases
b . i t. halves
c . it remains the same
d . it decreases
20 . What is the total voltage?
--4(D12 volts
b . 24 volts
c . 36 volts
d . 48 volts
VL
..
V1
1 < 1kOhm
21 . What
a . 12
b . 24
--1*0 36
d . 72
12 .000
2< 1kOhm
is the total voltage?
volts
volts
,
volts
volts
12 .000 V
R3< 1kOhm
12 .000 Y
V1--
V1
36 .000
T
2 < 1 kOhm
L36M00
3< 1kOhm
L 36 .0001VI,
ELTECH 113 Lecture (Quiz #3, 26-multiple choice questions)
Page 5
22 .
23 .
What is the total current?
3624 ~tA
b . 384 EiA
c . 2 .76 mA
d . 3 .6 mA
What is the total resistance?
545 S2
b . 555 S2
c . 565 Q
d . 575 Q
~~fl 1 S
Orvt
r
L
/~
.e. t3L Gtit
~rr~'~ s7
rye ~"~^
Dv0-JZ
3kGhm
24 .
What is the value of R2?
a . 250 0
b . 275 Q
300 S2
d . 325 Q
x,
Muitimeter-MMI
1 38 .462 Ohm
da
6000h m
F--
7
tc'T
ELTECH 113 Lec ture
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(Quiz #3,
3 0 0 __IL..
_
26-multiple choice questions)
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Page 6
25 .
26 .
L4 7-
What is the value of R3?
a . 40052
b . 60052
c . 80052
1 kQ
What
44
b'. 44
c . 44
d . 44
is
.0
.2
.3
.4
s .7. sy .2
Al sa
Multimeter--XM M l
the total power for the circuit?
W
W
v )(c2.
W
W
~= Y/-/" 05 11")
300hrn
ELTECH 113 Lecture
-END OF QUIZ-
7 Yo? A~
(Quiz #3,
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26-multiple choice questions)
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