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All field lines are either closed loops or lines that continue towards infinity. Field lines can cross each other. The direction of the magnetic field at a point is tangent to the field line that passes through that point. Magnetic field lines emerge from positive charges. If a field is created by a current, reversing the direction of the current results in reversing the direction of the field at all points. All field lines are perfect circles or straight lines. If field lines bunch up closer together in a region, this indicates that the magniturde of the magnetic field is stronger there. Magnetic fields appear only at locations where magnets are present. The direction of magnetic field lines indicate the direction in which a positive charge would move if placed in that region. The right hand rule can be used to determine the direction of the magnetic field created by a current in a straight wire.

All field lines are either closed loops or lines that continue towards infinity. Field lines can cross each other. The direction of the magnetic field at a point is tangent to the field line that passes through that point. Magnetic field lines emerge from positive charges. If a field is created by a current, reversing the direction of the current results in reversing the direction of the field at all points. All field lines are perfect circles or straight lines. If field lines bunch up closer together in a region, this indicates that the magniturde of the magnetic field is stronger there. Magnetic fields appear only at locations where magnets are present. The direction of magnetic field lines indicate the direction in which a positive charge would move if placed in that region. The right hand rule can be used to determine the direction of the magnetic field created by a current in a straight wire.

College Physics
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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Select all the statements that are true about magnetic fields and what they represent
All field lines are either closed loops or lines that continue towards infinity. Field lines can cross each other. The direction of the magnetic field at a point is tangent to the field line that passes through that point. Magnetic field lines emerge from positive charges. If a field is created by a current, reversing the direction of the current results in reversing the direction of the field at all points. All field lines are perfect circles or straight lines. If field lines bunch up closer together in a region, this indicates that the magnitule of the magnetic field is stronger there. Magnetic fields appear only at locations where magnets are present. The direction of magnetic field lines indicate the direction in which a positive charge would move if placed in that region. The right hand rule can be used to determine the direction of the magnetic field created by a current in a straight wire.
Transcribed Image Text:All field lines are either closed loops or lines that continue towards infinity. Field lines can cross each other. The direction of the magnetic field at a point is tangent to the field line that passes through that point. Magnetic field lines emerge from positive charges. If a field is created by a current, reversing the direction of the current results in reversing the direction of the field at all points. All field lines are perfect circles or straight lines. If field lines bunch up closer together in a region, this indicates that the magnitule of the magnetic field is stronger there. Magnetic fields appear only at locations where magnets are present. The direction of magnetic field lines indicate the direction in which a positive charge would move if placed in that region. The right hand rule can be used to determine the direction of the magnetic field created by a current in a straight wire.
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