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 8.2, Problem 1cT
Suppose that loop 2 were removed completely. Consider the circular path that the wire of loop 2 used to occupy.
• Would there still be an emf along the path? Explain.
• Would there still be a current along the path? Explain.
Expert Solution & Answer
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Students have asked these similar questions
A wire carries a constant current I to the right. A wire loop moves either upward or downward with a
constant velocity V in the plane of the paper. Which of the following statements are True/False?
•C
B
•A
1. Current flows clockwise as the loop moves from B to A and clockwise as the loop moves from D to C.
False
2. Current flows counterclockwise as the loop moves from A to B and counterclockwise as the loop moves
from C to D. True
3. Current flows clockwise as the loop moves from A to B and counterclockwise as the loop moves from
C to D. False
4. Current flows counterclockwise as the loop moves from A to B and clockwise as the loop moves from
D to C. False
5. Current flows counterclockwise as the loop moves from A to B and clockwise as the loop moves from
C to D. False
6. Current flows clockwise as the loop moves from A to B and clockwise as the loop moves from C to D.
False
Note: you MUST complete all sentences before submitting.
The Hall Effect• Describe the Hall effect.• Calculate the Hall emf across a current-carrying conductor.
A shunt-wound DC motor with the field coils and rotor
connected in parallel (Figure 1) operates from a 130 V
DC power line. The resistance of the field windings, Rt,
is 250 N. The resistance of the rotor, R;, is 4.40 N.
When the motor is running, the rotor develops an emf E.
The motor draws a current of 4.50 A from the line.
Compute the emf E .
• View Available Hint(s)
Friction losses amount to 50.0 W.
νΟ ΑΣφ
?
E =
V
Figure
1 of 1
Submit
Part D
Compute the rate of development of thermal energy in the field windings.
Vac
Rf
E, R
Express your answer in watts.
• View Available Hint(s)
Πνα ΑΣφ
Pth,windings
W
+
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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