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Physics 213
Test #2
July 17, 2008
Name:______________________
This is a closed book test. You may use a calculator and a selfmade handwritten (no photocopying) crib sheet
of dimensions no more than 81/2” x 11” with any information on one side. For multiple choice questions, circle
the most appropriate answer. For problems,
show all your work!!!
Partial credit will only be awarded to
problems that include the steps used in arriving at the result. Take your time but pace yourself. If you haven’t
gotten to the problems by the midpoint of the test, you should consider jumping to them and returning to the
multiple choice at the end. If a question is not clear, raise your hand, and I’ll try to clarify the question to you,
but don’t expect to get any hints. If you need more paper, I can provide you with some additional blank sheets.
Additional suggestions: If you cannot finish a problem write down what you do know and explain in words the
necessary steps. You will garner some partial credit for indicating the correct approach.
Section
Possible Points
Points Earned
Multiple Choice
45
Problem A
10
Problem B
10
Problem C
10
Problem D
10
Problem E
15
Total:
100
Bonus
8
Physical constants
Quantity
Symbol
Value
Unit
Speed of light in vacuum
c
,
c
o
2.998
×
10
8
m/s
Permittivity of free space
ε
o
8.854
×
10
12
C
2
/Nm
2
Permeability of free space
μ
o
4
л
× 10
7
Tm/A
Coulomb’s constant (1/4
л
o
)
K
8.988
×
10
9
Nm
2
/C
2
Elementary charge
e
1.602
×
10
19
C
Electron mass
m
e
9.109
×
10
31
kg
Proton mass
m
p
1.673
×
10
27
kg
Atomic mass unit
u
1.661
×
10
27
kg
Avogadro's number
N
A
6.023
×
10
23
1/mol
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View Full DocumentMultiple Choice: Circle the one best answer (3 points each):
1.
According to Lenz’s law the direction of an induced current in a conductor will be that which tends to
produce which of the following effects?
a.
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 Summer '08
 Cao
 Physics

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