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 22.1, Problem 3TH
A copper wire loop is initially at rest in a uniform magnetic field. Between times
Will current flow through the wire of the loop during this time interval? If so, indicate the direction of the induced current and explain your reasoning. If not, explain why not.
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The distance between the wire and the circular current
loop is r = 2.4 cm. (Figure 1)
Figure
O
2.0 A
-Wire
0.20 A
1 of 1
2.0 mm
What is the magnitude of the torque on the circular current loop?
Express your answer with the appropriate units.
T =
Submit
Part B
μÀ
Value
Request Answer
Units
What is the loop's stable equilibrium position?
?
O The dipole will be in equilibrium after rotating clockwise 135°.
O The dipole will be in equilibrium after rotating clockwise 180°.
O The dipole will be in equilibrium after rotating clockwise 45°.
O The dipole will be in equilibrium after rotating clockwise 90°.
The figure at right shows the top view of a
bar that can slide on two parallel rails without friction.
A constant external force Fapp is applied to the bar
causing it to slide to the right. A uniform magnetic field
B is directed into the page.
R
(a.)
If the applied force causes the bar to slide with a constant velocity v = 2 m/s, what is the
direction and magnitude of the current through the resistor? Take B= 0.5 T l = 10 cm, and R =
20 2. Solve the problem algebraically first, then plug in numbers.
(b.)
| Find the magnitude and direction of the magnetic force on the rod due to this motion. (If
you do not solve part (a), give an algebraic answer in terms of well-identified quantities for
partial credit.)
Chapter 22 Solutions
Tutorials in Introductory Physics
Ch. 22.1 - Use Lenz’ law to predict whether current will flow...Ch. 22.1 - For each of the cases in which you predicted that...Ch. 22.1 - Suppose that the radius of the loop were...Ch. 22.1 - Check your answer regarding the direction of the...Ch. 22.1 - Find: the direction of the magnetic moment of the...Ch. 22.1 - A copper wire loop is initially at rest in a...Ch. 22.2 - On the two diagrams below, indicate the direction...Ch. 22.2 - Suppose the loop were replaced by a second loop...Ch. 22.2 - Five loops of copper wire of same gauge...Ch. 22.2 - Five loops of copper wire of same gauge...
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- Shown below is a conducting rod that slides along metal rails. The apparatus is in a uniform magnetic field of strength 0.25 T, which is directly into the page. The rod is pulled to the right at a constant speed of 5.0 m/s by a force . The only significant resistance in the circuit comes from the 2.0resistor shown. (a) What is the emf induced in the circuit? (b) What is the induced current? Does it circulate clockwise or counter clockwise? (c) What is the magnitude of(d) What are the power output of and the power dissipated in the resistor?arrow_forwardConsider the system pictured in Figure P28.26. A 15.0-cm horizontal wire of mass 15.0 g is placed between two thin, vertical conductors, and a uniform magnetic field acts perpendicular to the page. The wire is free to move vertically without friction on the two vertical conductors. When a 5.00-A current is directed as shown in the figure, the horizontal wire moves upward at constant velocity in the presence of gravity. (a) What forces act on the horizontal wire, and (b) under what condition is the wire able to move upward at constant velocity? (c) Find the magnitude and direction of the minimum magnetic Field required to move the wire at constant speed. (d) What happens if the magnetic field exceeds this minimum value? Figure P28.26arrow_forwardA wire of length 1.0 m is wound into a single-turn planar loop. The loop carries a current of 5.0 A, and it is placed in a uniform magnetic field of strength 0.25 T. (a) What is the maximum torque that the loop will experience if it is square? (b) If it is circular? (c) At what angle relative to B would die normal to the circular coil have to be oriented so that the torque on it would be the same as the maximum torque on the square coil?arrow_forward
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What is Electromagnetic Induction? | Faraday's Laws and Lenz Law | iKen | iKen Edu | iKen App; Author: Iken Edu;https://www.youtube.com/watch?v=3HyORmBip-w;License: Standard YouTube License, CC-BY