A neutral metal rod of length 0.25 m slides horizontally at a constant speed of 7 m/s on frictioniess insulating rails through a region of uniform magnetic field of magnitude 0.3 tesla, directed out of the page as shown in the diagram. Before answering the following questions, draw a diagram showing the polarization of the rod, and the direction of the Coulomb electric field inside the rod. Which of the following statements is true? The top of the moving rod is positive. a od The top of the moving rod is negative. The right side of the moving rod is positive. The right side of the moving rod is negative. The moving rod is not polarized. After the initial transient, what is the magnitude of the net force on a mobile electron inside the rod? N What is the magnitude of the electric force on a mobile electron inside the rod? What is the magnitude of the magnetic force on a mobile electron inside the rod? 1Fmagl- N What is the magnitude of the potential difference across the rod? volts In what direction must you exert a force to keep the rod moving at constant speed? O To the left No force is needed O To the right

A neutral metal rod of length 0.25 m slides horizontally at a constant speed of 7 m/s on frictioniess insulating rails through a region of uniform magnetic field of magnitude 0.3 tesla, directed out of the page as shown in the diagram. Before answering the following questions, draw a diagram showing the polarization of the rod, and the direction of the Coulomb electric field inside the rod. Which of the following statements is true? The top of the moving rod is positive. a od The top of the moving rod is negative. The right side of the moving rod is positive. The right side of the moving rod is negative. The moving rod is not polarized. After the initial transient, what is the magnitude of the net force on a mobile electron inside the rod? N What is the magnitude of the electric force on a mobile electron inside the rod? What is the magnitude of the magnetic force on a mobile electron inside the rod? 1Fmagl- N What is the magnitude of the potential difference across the rod? volts In what direction must you exert a force to keep the rod moving at constant speed? O To the left No force is needed O To the right

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Concept explainers

Magnetic Field Of Coaxial Cable

The word coaxial means same axis. So for a long straight cable to be coaxial, it must have concentric cylindrical shaped conductor around it. Coaxial cable (popularly called ‘coax’) has various applications ranging from current conductors to radiofrequency signal transmitters. This cable has lower emission losses and provides protection from electromagnetic interference which allows signals with less power to transmit over longer distances.For example, currents produced in the pickup of a stereo turntable generally travel to the amplifier through a coaxial cable.The self-inductance of a coaxial cable is another important characteristic, because it influences the propagation of electrical signals in the cable.

Question

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A neutral metal rod of length 0.25 m slides horizontally at a constant speed of 7 m/s on frictionless insulating rails through a region of uniform magnetic field of magnitude 0.3 tesla, directed out of the page as shown in the diagram. Before answering the following questions, draw a diagram showing the
polarization of the rod, and the direction of the Coulomb electric field inside the rod.
Which of the following statements is true?
O The top of the moving rod is positive.
The top of the moving rod is negative.
The right side of the moving rod is positive.
The right side of the moving rod is negative.
The moving rod is not polarized.
After the initial transient, what is the magnitude of the net force on a mobile electron inside the rod?
|Fnetl =
What is the magnitude of the electric force on a mobile electron inside the rod?
N
What is the magnitude of the magnetic force on a mobile electron inside the rod?
|Fmagl = [
N
What is the magnitude of the potential difference across the rod?
JAVI =
In what direction must you exert a force to keep the rod moving at constant speed?
volts
O To the left
O No force is needed
O To the right
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