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 23.4, Problem 2aTH
Consider an instant when the fields are non−zero at the location of the antenna.
On the diagram at right, draw and label arrows to indicate (1) the direction of the electric field and (2) the direction of the magnetic field. Explain your reasoning. (Note: More than one answer is possible.)
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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?
Look at the scenario on the bottom left. Here a bar magnet has been
broken into two pieces. Make a drawing of the part of the magnetic
circled in red. (1) Clearly identify the pole where the red question mark
is by adding an N or S in your drawing. Then (2) draw the magnetic field
lines for the bar magnet in the google drawing. Make sure to show the
direction of your field lines by including arrow heads.
5
For each of the current distributions below, determine and clearly label the regions where
the magnetic field points into and out of the plane of the page. All figures are planar and
the wires are long, insulated from each other, and carry constant current in the direction
indicated.
Chapter 23 Solutions
Tutorials in Introductory Physics
Ch. 23.1 - Prob. 1THCh. 23.1 - In the spaces provided belowright, carefully draw...Ch. 23.1 - Prob. 2bTHCh. 23.1 - We begin by considering the forces exerted on a...Ch. 23.1 - Prob. 3bTHCh. 23.1 - Prob. 3cTHCh. 23.1 - Prob. 3dTHCh. 23.1 - Prob. 3eTHCh. 23.1 - Prob. 4THCh. 23.2 - Prob. 1TH
Ch. 23.2 - Prob. 2aTHCh. 23.2 - Prob. 2bTHCh. 23.2 - Prob. 2cTHCh. 23.2 - Prob. 3aTHCh. 23.2 - Prob. 3bTHCh. 23.2 - Prob. 3cTHCh. 23.2 - The figure at right has several errors. How many...Ch. 23.3 - Prob. 1aTHCh. 23.3 - Prob. 1bTHCh. 23.3 - Prob. 1cTHCh. 23.3 - For each of the periodic functions below, indicate...Ch. 23.3 - Prob. 2THCh. 23.3 - Use trigonometry to determine the mathematical...Ch. 23.3 - Starting from the equation that you wrote above,...Ch. 23.3 - Suppose the speed of the refracted wave were half...Ch. 23.3 - Prob. 3dTHCh. 23.4 - A long, thin steel wire is cut in half, and each...Ch. 23.4 - A long, thin steel wire is cut in half, and each...Ch. 23.4 - A long, thin steel wire is cut in half, and each...Ch. 23.4 - Consider an instant when the fields are nonzero at...Ch. 23.4 - How would your answers to parta be different if...Ch. 23.4 - Prob. 3TH
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- A charged particle follows a curved path in a magnetic field as shown. What polarity (positive or negative) is the charge? Fully explain your reasoning. Note: Look at image.arrow_forwardA bar magnet is pushed toward a loop of wire as shown in the (Figure 1). Figure P S N < 1 of 1 Is there a current in the loop? If so, in which direction? If not, why not? Match the words in the left column to the appropriate blanks in the sentences on the right. is always zero, as all field lines that enter the loop then symmetrically exit the loop. mostly caused by downward pointing magnetic field lines increases. mostly caused by upward pointing magnetic field lines increases. ---------- a clockwise-induced current is needed to oppose the flux change. a counterclockwise-induced current is needed to oppose the flux change. since no flux change occurs, no current is induced in the loop. Reset Help As the bar magnet is pushed upward directly under the center of the loop, the net magnetic flux According to Lenz's law,arrow_forwardTwo wires lie perpendicular to the plane of the paper and equal electric currents pass through the paper in the directions shown. Point P is equidstant from the two wires. a) Construct a vector diagram showing the direction of the resultant magnetic field at point P due to currents in these wires. Explain your reasoning. b) If the currents in both wires were instead directed into the plane of the page (such that the current moved away from us), show the resultant magentic field at point P.arrow_forward
- The loop of wire shown in (Figure 1) forms a right triangle and carries a current I = 6.00 A in the direction shown. The loop is in a uniform magnetic field that has magnitude B = 3.50 T directed into the screen.What is the magnitude of the net torque on the loop? Calculate the net torque from the torques calculated in part C and also from τ=NIABsinϕ.Express your answer in newton-meters. Enter your answers numerically separated by commasarrow_forwardConsider two infinitely-long current-carrying wires separated by a distance d; one carries current I into the page and one carries current I out of the page. (see image attached) a) Draw the net magnetic field vectors at points A,B,C,D. Only the direction will be graded, not the length. If the magnetic field at the location is zero, indicate that clearly on the diagram. b) D is located a distance d from both currents. If a particle of charge q is placed at rest at D, what is the magnitude of the magnetic force it experiences, in terms of q, I, d, and/or e0? Explain your answer.arrow_forwardThe figure at right shows two current carrying wires, which are oriented perpendicular to the page. The currents are the same magnitudes but • A opposite directions as indicated by the usual convention. wire 1 wire 2 What is the direction of the the net magnetic field vector at point A. A. С. D. E. F. into the out of the page page B.arrow_forward
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- A long straight wire, perpendicular to the page, passes through a uniform magnetic field B = 2.5 T that points to the right, see the picture below. The net field at point 2 is zero. Point 1 is the same distance from the wire as point 2 and point3 is twice as distant. Determine the net magnetic field at point 1. Take the positive direction of the field to the Right. Uniform B-Feld 1 O wire The B-field, B1 = Units Select an answer v 2.arrow_forwardA snapshot graph of an EM plane wave is shown below. The electric field is parallel to the y-axis and the magnetic field is parallel to the z-axis. The points labeled 1, 2 and 3 are in the(x, y) plane. Rank the magnitude of the magnetic field at points 1, 2 and 3. If field is 0 at any of thesepoints, state so explicitly. Explain What is the direction of propagation of the plane wave? Explain If the wavelength of the plane wave is λ = 600 nm and the magnitude of the electric field is E= 10 V/m, write an expression for the B field in the form B = B sin(Cx + Dt) .Give the values of Bo, C and D.Take for the speed of light c = 3x10 m/sarrow_forwardA long straight wire is located above one edge of a current loop. The wire and loop are oriented perpendicular to the screen/page. The net magnetic field at point 1 is zero. What is the direction of the current in the loop? Draw a vector diagram showing the net magnetic field at point 2. What is the direction of the current loop’s north pole?arrow_forward
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