ECE 201:
Circuits and Systems 1
Exam 1
September 30, 2009
Prof. Tim Hogan
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Question
Score
1
2
3
4
Total
Prefixes
10
12
tera
T
10
9
giga
G
10
6
mega
M
10
3
kilo
k
10
3
milli
m
10
6
micro
μ
10
9
nano
n
10
12
pico
p
10
15
femto
f
10
18
atto
a
This exam is out of 100 points.
Read through the exam before starting and feel
free to do the easier parts first.
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Careful of units.
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1
Problem #1:
Matching & True/False
24 points
Match the
Property
in the left column to the
Phrase
in the right column by placing the appropriate letter
from the Property column in the boxes provided.
Each Property can be used any number of times, such
that some letters might not be used, while others could be used more than once
. (2 points each)
Property
Phrase
A) Kirchhoff’s
Voltage Law
The point of electrical junction between two or more circuit elements.
B) Power
ௗ௪
ௗ
where
w
is energy, and
q
is charge.
C) Conductance
The product of
times
gives a result that has units of
joules.
D) Voltage
A connection constraint.
E) Node
A circuit element with a conductance of zero siemens.
F) Kirchhoff’s
Current Law
The sum of all current entering a given node equals the sum of all
current leaving that node at every instant.
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 Spring '07
 STAFF
 Resistor, Electrical resistance

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