1.
1/1 points
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Notes
Question: Walker4 22.P.039.
A rectangular loop of 200 turns is
26
cm wide and 16 cm high. What is the
current in this loop if the maximum torque in a field of 0.45 T is
22
N ∙ m?
A
2.
1/1 points
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Notes
Question: Walker4 22.P.040.
A single circular loop of radius
0.15
m carries a current of
3.3
A in a
magnetic field of 0.95 T. What is the maximum torque exerted on this
loop?
N ∙ m
3.
1/1 points
All Submissions
Notes
Question: Walker4 22.P.045.
Find the magnetic field
5.86
cm from a long, straight wire that carries a
current of
5.88
A.
T
4.
2/2 points
All Submissions
Notes
Question: Walker4 22.P.048.
Two power lines, each
200
m in length, run parallel to each other with a
separation of 35 cm. If the lines carry
parallel
currents of
120
A, what is the
magnitude and direction of the magnetic force each exerts on the other?
magnitude
N
direction
5.
4/4 points
All Submissions
Notes
Question: Walker4 22.P.050.
Consider the long, straight, current-carrying wires shown in the figure. One
wire carries a current of
5.8
A in the
negative
y
direction; the other wire
carries a current of 4.5 A in the positive
x
direction.
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(a) At which of the two points,
A
or
B
, do you expect the magnitude of the
net magnetic field to be greater?
point
A
point
B
same at
A
and
B
Explain.
(b) Calculate the magnitude of the net magnetic field at points
A
and
B
.
point
A
T
point
B
T
6.
1/1 points
All Submissions
Notes
Question: Walker4 22.P.058.
A solenoid that is 75 cm long produces a magnetic field of
1.7
T within its
core when it carries a current of
7.8
A. How many turns of wire are
contained in this solenoid?
7.
–/1 points
Notes
Question: Walker4 22.P.059.
The maximum current in a superconducting solenoid can be as large
as
3.58
kA. If the number of turns per meter in such a solenoid is
2665
,
what is the magnitude of the magnetic field it produces?

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- Spring '08
- Pedigo
- Physics, Current, Magnetic Field, 5.6 W, 7.5 W, pointsAll Submissions NotesQuestion, T. Wb
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