The figure shows, in cross section, four thin wires that are parallel, straight, and very long. They carry identical currents of i= 2.80 A in the directions indicated. Initially all four wires are at distance d=11.9 cm from the origin of the coordinate system, where they create a net magnetic field B. (a) To what value of x must you move wire 1 along the x axis in order to rotate B counterclockwise by 30%? (b) With wire 1 in that new position, to what value of x must you move wire 3 along the x axis to rotate B by 30° back to its initial orientation? (a) Number (b) Number Units Units
The figure shows, in cross section, four thin wires that are parallel, straight, and very long. They carry identical currents of i= 2.80 A in the directions indicated. Initially all four wires are at distance d=11.9 cm from the origin of the coordinate system, where they create a net magnetic field B. (a) To what value of x must you move wire 1 along the x axis in order to rotate B counterclockwise by 30%? (b) With wire 1 in that new position, to what value of x must you move wire 3 along the x axis to rotate B by 30° back to its initial orientation? (a) Number (b) Number Units Units
Chapter11: Magnetic Forces And Fields
Section: Chapter Questions
Problem 108CP: A wire ismade into a circular shape of radius R and pivoted along a central support.The two ends of...
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Transcribed Image Text:The figure shows, in cross section, four thin wires that are parallel, straight, and very long. They carry identical currents of i = 2.80 A in
the directions indicated. Initially all four wires are at distance d = 11.9 cm from the origin of the coordinate system, where they create
a net magnetic field B. (a) To what value of x must you move wire 1 along the x axis in order to rotate B counterclockwise by 30°? (b)
With wire 1 in that new position, to what value of x must you move wire 3 along the x axis to rotate B by 30° back to its initial
orientation?
(a) Number
(b) Number
Units
Units
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