Imagine that the
1. Suppose that the wire were oriented parallel to the z-axis.
As the wave propagates past the wire, would the electric field due to the radio wave cause the charges in the wire to move? If so, would the charges move in a direction along the length of the wire? Explain.
As the wave propagates past the wire, would the magnetic field due to the cause the charges in the wire to move in a direction along the length of the wire? Explain.
2. Imagine that the thin conducting wire is cut in half and that each half is connected to a different terminal of a light bulb. (See diagram at right.)
If the wire were placed in the path of the radio wave and oriented parallel to the z-axis, would the bulb ever glow? Explain. (Him: Under what condition can a bulb glow even if it is not part of a closed circuit?)
How, if at all, would your answer change lithe wire were oriented:
• parallel to the y-axis? Explain.
• parallel to the x-axis? Explain.
3. Suppose that the bulb were disconnected and that each half of the wire were connected in a circuit, as shown. (A conducting wire or rod used in this way is an example of an antenna.)
In order to best detect the oncoming radio wave (that is. to maximize the current through the circuit), how should the antenna be oriented relative to the wave? Explain.
Learn your wayIncludes step-by-step video
Chapter 9 Solutions
Tutorials in Introductory Physics
Additional Science Textbook Solutions
University Physics Volume 1
Physics for Scientists and Engineers: A Strategic Approach, Vol. 1 (Chs 1-21) (4th Edition)
Modern Physics
Essential University Physics: Volume 1 (3rd Edition)
Conceptual Physics (12th Edition)
Conceptual Physical Science (6th Edition)
- C. For wire m to be levitated. what is the direction of its eurrent ? d) Find the mas m of the third wire. Your answer should be in terms of , I, Im, a, h, g, and larrow_forwardThe colors of the stars in the sky range from red to blue. Assuming that the color indicates the frequency at which the star radiates the maximum amount of electromagnetic energy, estimate the surface temperature of red, yellow, white, and blue stars. Part A Estimate the surface temperature of the red star. Assume that red color corresponds to wavelengths of approximately 650 nm. Express your answer in kelvins. Templates Symbols undo' redo Teset keyboard shortcuts help K Tred= Submit Request Answer ▾ Part B Estimate the surface temperature of the yellow star. Assume that yellow color corresponds to wavelengths of approximately 570 nm. Express your answer in kelvins. redo Reset keyboard shortcuts help Templates Symbols undo redo Tyellow = Submit Request Answer кarrow_forward1. Explain (with specific reference to Maxwell's ec electric field must always be associated with a pr 2. Explain why a free charge q will be attracted to conductor, and explain how you expect this forc the regular Coulomb force between two charges. ions) why a traveling wave in the gating wave in the magnetic field. surface of an electrically neutral › vary with distance compared toarrow_forward
- Part A A parallel-plate air-filled capacitor is being charged as in the figure (Figure 1). The circular plates have radius 4.09 cm , and at a particular instant, the conduction current in the wires is 0.286 A What is the displacement current density jp in the air space between the plates? ? jD = A/m? Submit Request Answer Figure 1 of 1 > Part B B 00 What is the rate at which the electric field between the plates is changing? ic ΑΣφ ? dE V/m·s dt -4 Submit Request Answerarrow_forwardHelp mearrow_forward108. A beam of singly ionized helium is injected into the velocity selector at right. The electric field is 25 kN/C directed up. Note: c = 3 x 108 m/s a. What magnitude and direction magnetic field is necessary to select ionized helium at 0.05c? Mathematical Analysis b. Would this selector also work with doubly ionized helium at 0.05c? c. If the beam is replaced with a beam of neutral helium, what happens to neutral helium atoms traveling at 0.05c?arrow_forward
- The colors of the stars in the sky range from red to blue. Assuming that the color indicates the frequency at which the star radiates the maximum amount of electromagnetic energy, estimate the surface temperature of red, yellow, white, and blue stars. Part A Estimate the surface temperature of the red star. Assume that red color corresponds to wavelengths of approximately 650 nm. Express your answer in kelvins. Templates Symbols undo' redo Teset keyboard shortcuts help Tred= Karrow_forwardAn electromagnetic wave has an electric field amplitude of 80 V/mV/m. The field has a maximum rate of change of 7.5×10107.5×1010 (V/m)/s(V/m)/s. Part A What is the wavelength?arrow_forwardA. We again consider the photoelectric effect apparatus and will assume that the light source is on. Monochromatic light source Evacuated tube HA V 'В Let I, represent the ammeter reading with no battery in the circuit. 1. Is I1, the current when there is one battery in the circuit, greater than, less than or equal to Io? Explain. 2. A second battery is added in series with the first; both batteries have the same orientation. Rank I, I₁, and I₂ (the current when there are two batteries in the circuit) according to magnitude, from largest to smallest. Explain. 3. Suppose additional batteries were inserted in the same manner. Would the current increase with each addition? If so, is there a limit to the amount of current that can be produced? Explain. 4. Is it possible to use batteries to decrease the current? If so, show how to connect the batteries and sketch some possible paths of electrons. B 5. Could batteries be used to produce a constant clockwise flow of electrons (i.e., a…arrow_forward
- Part I. A. Write TRUE if the statement is corTrect and FALSE if the statement is wrong and underline the word/s that made it incorrect, Write your answer on the column provided for each item. No. Statement TRUE or FALSE The electromagnetic spectrum is the complete range of electromagnetic waves placed in order of increasing frequency. Different electromagnetic waves have different frequencies. 3 The longer the wavelength, the more light energy it carries. 4. Different colors of light are waves with different wavelengths. Wavelength and frequency are directly related. B. Unscramble the letters to form a word that gives the various parts of the electromagnetic spectrum. a. Luta lov tire e. Mama grays f. dear frin b. Levis bil tigh g. rayxs- Waive sodar ra Save rowmic с. d. C. Compare the frequency of electromagnetic waves in the following pairs by writing lower than or higher than. infrared visible 3 a. gamma ray b. ultraviolet red light c. infraredarrow_forwardWhat are the properties of an EM wave? Be sure to answer the following questions: What is it made up of? How are the parts related to one another? What type of wave is it (transverse or longitudinal) and why? Does an EM wave require a medium? If so, then what medium is required for an EM wave? Then list the various types of EM waves in order of increasing frequency. Include a diagram of the EM wave that illustrates your answers and also include the direction of propagation (or the Poynting vector) for the EM wave in your diagram.arrow_forwardAbout Maxwell's displacement current, judge the following items. I. It is obtained from the variation of the magnetic flux, for example, between the plates of a capacitor. II. The displacement current establishes a symmetry between the electric and magnetic fields by indicating that, just as the temporal variations of the magnetic field produce an electric field (Faraday's Law), it is possible that magnetic fields are created from temporal variations of the electric field . III. The displacement current was fundamental to the understanding that light is an electromagnetic wave. IV. Ampere's Law works independently of the existence of the Maxwell displacement current, as long as we consider only stationary electrical currents. Choose an option:A. II, III and IV correct.B. II and III correct.C. I, II and III correct.D. I, II and IV correct.E. I and IV correct.F. Only II is correct.G. All incorrect.H. Only III is correct.arrow_forward
- College PhysicsPhysicsISBN:9781305952300Author:Raymond A. Serway, Chris VuillePublisher:Cengage LearningUniversity Physics (14th Edition)PhysicsISBN:9780133969290Author:Hugh D. Young, Roger A. FreedmanPublisher:PEARSONIntroduction To Quantum MechanicsPhysicsISBN:9781107189638Author:Griffiths, David J., Schroeter, Darrell F.Publisher:Cambridge University Press
- Physics for Scientists and EngineersPhysicsISBN:9781337553278Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningLecture- Tutorials for Introductory AstronomyPhysicsISBN:9780321820464Author:Edward E. Prather, Tim P. Slater, Jeff P. Adams, Gina BrissendenPublisher:Addison-WesleyCollege Physics: A Strategic Approach (4th Editio...PhysicsISBN:9780134609034Author:Randall D. Knight (Professor Emeritus), Brian Jones, Stuart FieldPublisher:PEARSON