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Unformatted text preview: égg7h¢iYUV\S EE2011 HOMEWORK # 1 C03 To make the grading easier, please draw a rectangle around each ﬁnal answer! Be sure
all answers have appropriate units (Amps, Volts, etc. associated with any numerical
value. This assignment is due Friday, January 17, bring to class to hand—in. Problem 1
All of the following simple problems illustrate the meaning of the reference signs and directions. For each of these simple circuits, find the correctly signed value of the indicated quantity.
( (a) (in) % (53 ‘ +
v:3v
(0“) i 3
V“
av +
L—f—o
“"”'1V C=IOA (:ZA
,7 1:, V”. 2 $2., Problem 2
All of the following simple problems illustrate the meaning of the conventional reference directions for Ohm s law and absorbed power. For each of these Rsimple circuits, ﬁnd the correctly signed
value of the indicated quantity, v (voltage) (current) (resistance) )Or PR (Power absorbed by a resistor). Problem 3 All of the following simple problems test whether you can correctly apply KCL and KVL when
distracting reference directions are present. For each of these simple circuits, ﬁnd the correctly
signed value of the indicated quantity. Problem 4
For the following circuits use Ohms law and any mix of circuit methods (KVL, KCL) to ﬁnd the
labeled but unknown current or voltage. 9‘ IL ”L 09) Problem 5
For the following circuits ﬁnd the combined effective resistance of the networks: (0J7, 15D. 20.12.. (a)  (m 0"“ I
@W Io JL 1031 R ' 4 5 .0— g .' {gem Wm,
12 ‘ “3/3 11—
51.51, 5112,
5 JL 20h lo .51 lo .{L
oanM/‘W
(0.0.,
{2 z B O Q R :: 2. O Q.
loll. (0J1. mg,
{0 JV—
Problem 6
Solve the following systems of linear equations for all unknowns. ~ S
a) 3252 M25? page
+ =5 x2, : 1 My ism K
b) /
2$1+4I2‘$3—4 >(l : _.5/2_
W J. 0’7". __ 0/7“ — A
~01 I uwz was ~ 1 >( _— 2.3
—$1+2I2}x3—5 32' /‘l
( p i ,
r 2‘ M 1—;
C) w, / 5
3(x1~1)+(:r2~a:1)—3:0 X; :1"?—
3(x1~—$2)+2$2*4:0 X2" 1 2w
d) F‘\ . ,, E:
4 éxl w 3.) erMV Wuu M. a“; hwy—mhmww *4 a f’b) 0&ch @ magi
L? XL A x?) : ‘1
W A " S .‘ “w
Qx'ifif’éﬂm; ”aw/3; h, GM Cg; _ dc}
2,2< and ﬁq
g 5W 1:} X; I E g ~x
.2,“ ..
M A
1 M»...—
W > 117:») ...
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 Spring '03
 Cyganski

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