Tutorials in Introductory Physics
1st Edition
ISBN: 9780130970695
Author: Peter S. Shaffer, Lillian C. McDermott
Publisher: Addison Wesley
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Textbook Question
Chapter 21.2, Problem 2cTH
Suppose that a third wire (carrying the same current
Clearly indicate on the diagram at right the correct location of the new wire. Explain how you determined your answer.
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The magnetic field in the picture below is uniform and points upward. A wire is normal to the page (going into and out of the paper or computer screen you are looking on). The distance from the wire to point #2 is 1cm. When the wire carries a current, the net magnetic field at point 2 is zero.
Point 1 is the same distance from the wire as point 2. Use a vector diagram to determine the net magnetic field at point 1 when the current is on.
Point 3 is twice as far from the wire as point 2. Use a vector diagram to determine the net magnetic field at point 3 when the current is on.
If the magnetic field at point 3 is 1.0x10-4 T, how much current is flowing in the wire?
The loop of wire shown in (Figure 1) forms a right triangle and carries
a current I = 4.00 A in the direction shown. The loop is in a uniform
magnetic field that has magnitude B = 4.00 T directed into the
Part A
screen
Find the magnitude of the force exerted by the magnetic field on each side of the triangle.
Express your answer in newtons to three significant figures. Enter your answers numerically separated by commas.
|FrQ|, |FQR|, |FRp| =
N
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Figure
< 1 of 1
• Part B
Part C
What is the net force on the loop?
0.600 m
Express your answer with the appropriate units.
HẢ
0.800 m
F =
Value
Units
An electron moves along the z-axis with v = 2.9 x 107 m/s. As it
passes the origin, what are the strength and direction of the magnetic
field at the following (z, y, z) positions?
Correct
Part B
(0 cm. 0 cm, 2 cm)
Express your answers using two significant figures. Enter your answers numerically separated by commas.
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B2, By, B; = 0,0,0 T
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Correct
Part C
(0 cm 2 cm.2 cm)
Express your answers using two significant figures. Enter your answers numerically separated by commas.
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να ΑΣφ
redo
B. By, B: = ( -1.16•10¯17
0,0)
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Chapter 21 Solutions
Tutorials in Introductory Physics
Ch. 21.1 - Based on your experience with electric field...Ch. 21.1 - Carefully draw the magnetic field lines for the...Ch. 21.1 - Based on the magnetic field lines you have drawn,...Ch. 21.1 - Two identical magnets are placed as shown. Using...Ch. 21.1 - To which of your three classes from section I of...Ch. 21.1 - To which of your three classes could bar 2 belong?...Ch. 21.1 - Would end 2A attract, repel, or neither attract...Ch. 21.2 - A magnet is hung by a string and then placed near...Ch. 21.2 - Draw a vector on the diagram to show the direction...Ch. 21.2 - Suppose that a third wire, carrying another...
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