A horizontal wire carries a current pointing to the right and point P is a distance r away from the wire, above the wire. By how much would the magnetic field change at point P if the current was doubled, the distance r was four times larger? the magnetic field at P would change by a factor of 2/3 the magnetic field at P would be divided by 2 O the magnetic field at P would change direction but its magnitude would remain the same O the magnetic field at P would triple O the magnetic field at P would remain unchanged

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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A horizontal wire carries a current pointing to the right and point P is a distance r away from the
wire, above the wire. By how much would the magnetic field change at point P if the current was
doubled, the distance r was four times larger?
the magnetic field at P would change by a factor of 2/3
O the magnetic field at P would be divided by 2
O the magnetic field at P would change direction but its magnitude would remain the same
O the magnetic field at P would triple
O the magnetic field at P would remain unchanged
Transcribed Image Text:A horizontal wire carries a current pointing to the right and point P is a distance r away from the wire, above the wire. By how much would the magnetic field change at point P if the current was doubled, the distance r was four times larger? the magnetic field at P would change by a factor of 2/3 O the magnetic field at P would be divided by 2 O the magnetic field at P would change direction but its magnitude would remain the same O the magnetic field at P would triple O the magnetic field at P would remain unchanged
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