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 8.1, Problem 2aT
The diagram at right shows a stationary, copper wire loop in a uniform magnetic field. The magnitude of the field is decreasing with time.
1. Would you predict that there would be a current through the loop:
• if you were to use the idea that there is a magnetic force exerted on a charge moving in a magnetic field? Explain your reasoning.
• if you were to use the reasoning of the student in part D of section I with whom you agreed? Explain.
2. It is observed that there is an induced current through the wire loop in this case. Use the appropriate reasoning above to find the direction of the current through the wire of the loop.
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Part C
Five equal-mass particles (A-E) enter a region of uniform
magnetic field directed into the page. They follow the
trajectories illustrated in (Figure 1).
Part D
Now assume that particles A, B, C, and E all have the same magnitude of electric charge. Rank the particles A, B, C,
and E on the basis of their speed.
Rank from largest to smallest. To rank items as equivalent, overlap them.
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A particle with a charge of – 5.70 nC is moving in
a uniform magnetic field of B = -( 1.25 T )k. The
magnetic force on the particle is measured to be
F = -( 4.00x10-7 N )ê+(7.60×10-7 N ).
Part B
Calculate the x component of the velocity of the particle.
Express your answer in meters per second to three significant figures.
• View Available Hint(s)
Vr = -107
m/s
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Part C
Calculate the y component of the velocity of the particle.
Express your answer in meters per second to three significant figures.
View Available Hint(s)
?
Vy =
m/s
Discuss why power system load flow analysis is undertaken and why iterative
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II.
The Gauss Seidel calculation for the pu voltage on Bus 2 of a certain power network
is as shown at formula Q4:
0.5834149°
(v.)
Formula Q4
Assuming v₂[0] = 120° volts determine
(¹) and (2) then comment on the results
obtained in terms of the outcome of the iteration so far.
III.
1
1.62-80°
- (1.92100°) x (1.140°)
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Chapter 8 Solutions
Tutorials in Introductory Physics
Ch. 8.1 - A copper wire loop is placed in a uniform magnetic...Ch. 8.1 - Suppose that the loop is now placed in the...Ch. 8.1 - In each of the diagram below, the position of a...Ch. 8.1 - D. State whether you agree or disagree with each...Ch. 8.1 - The diagram at right shows a stationary, copper...Ch. 8.1 - To understand the interaction between the wire...Ch. 8.1 - A wire loop moves from a region with no magnetic...Ch. 8.1 - At two later instants, t=t1andt=t1+t the loop is...Ch. 8.2 - The resistance of loop 2 is greater than that loop...Ch. 8.2 - Suppose that loop 2 were replaced by a wooden...
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