Two long wires carry currents in the directions shown in Figure Q24.11. One wire is 10 cm
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Two long wires carry currents in the directions shown in Figure Q24.11. One wire is 10 cm above the other. In which direction is the magnetic field at a point halfway between them?
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FIGURE Q24.11
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The magnetic field at a point halfway between two long wires carrying currents in opposite directions is perpendicular to the plane of the wires and points towards the wire carrying the current that is closest to the point Explanation The magnetic field due to each wire can be calculated using the BiotSavart law The BiotSavart law states that the magnetic field at a point is proportional to the current in the wire the length of the wire element and the sine of the angle between the current element and the line connecting the point to the wire element The direction ...View the full answer
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Related Book For
College Physics A Strategic Approach
ISBN: 9780321595492
2nd Edition
Authors: Randall D. Knight, Brian Jones, Stuart Field
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