Figure (a) shows two wires, each carrying a current. Wire 1 consists of a circular arc of radius R = 0.018 m and two radial lengths; it carries current i = 2.1 A in the direction indicated. Wire 2 is long and straight; it carries a current iz that can be varied; and it is at distance R/2 from the center of the arc. The net magnetic field B due to the two currents is measured at the center of curvature of the arc. Figure (b) is a plot of the component of B in the direction perpendicular to the figure as a function of current i2. The horizontal scale is set by i2s = 2.0 A. What is the angle subtended by the arc? iz (A) (a) (b) Number i .95 Units rad

Figure (a) shows two wires, each carrying a current. Wire 1 consists of a circular arc of radius R = 0.018 m and two radial lengths; it carries current i = 2.1 A in the direction indicated. Wire 2 is long and straight; it carries a current iz that can be varied; and it is at distance R/2 from the center of the arc. The net magnetic field B due to the two currents is measured at the center of curvature of the arc. Figure (b) is a plot of the component of B in the direction perpendicular to the figure as a function of current i2. The horizontal scale is set by i2s = 2.0 A. What is the angle subtended by the arc? iz (A) (a) (b) Number i .95 Units rad

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

Figure (a) shows two wires, each carrying a current. Wire 1 consists of a circular arc of radius R = 0.018 m and two radial lengths;
it carries current i = 2.1 A in the direction indicated. Wire 2 is long and straight; it carries a current iz that can be varied; and it is
at distance R/2 from the center of the arc. The net magnetic field B due to the two currents is measured at the center of
curvature of the arc. Figure (b) is a plot of the component of B in the direction perpendicular to the figure as a function of
current i2. The horizontal scale is set by i2s = 2.0 A. What is the angle subtended by the arc?
R
ig (A)
(a)
(b)
Number
i
.95
Units
rad

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