Three long wires are parallel to a z axis, and each carries a current of 14 A in the positive z direction. Their points of intersection with the xy plane form an equilateral triangle with sides of 43 cm, as shown in the figure. A fourth wire (wire b) passes through the midpoint of the base of the triangle and is parallel to the other three wires. If the net magnetic force on wire a is zero what are the (a) size and (b) direction (+zor -z) of the current in wire b? Take current in the positive z direction to be positive and current in the negative z direction to be negative. (a) Number i Units A L.

Three long wires are parallel to a z axis, and each carries a current of 14 A in the positive z direction. Their points of intersection with the xy plane form an equilateral triangle with sides of 43 cm, as shown in the figure. A fourth wire (wire b) passes through the midpoint of the base of the triangle and is parallel to the other three wires. If the net magnetic force on wire a is zero what are the (a) size and (b) direction (+zor -z) of the current in wire b? Take current in the positive z direction to be positive and current in the negative z direction to be negative. (a) Number i Units A L.

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

Three long wires are parallel to a z axis, and each carries a current of 14 A in the positive z direction. Their points of intersection with
the xy plane form an equilateral triangle with sides of 43 cm, as shown in the figure. A fourth wire (wire b) passes through the midpoint
of the base of the triangle and is parallel to the other three wires. If the net magnetic force on wire a is zero what are the (a) size and (b)
direction (+z or -z) of the current in wire b? Take current in the positive z direction to be positive and current in the negative z direction
to be negative.
(a) Number
i
A.
L
Units
A

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