Consider the wires shown in (Figure 1). The upper wire carries the current I1 = 14A. What should the current I2 be in the lower wire such that the magnetic field at point P is zero? Express your answer with the appropriate units.

Consider the wires shown in (Figure 1). The upper wire carries the current I1 = 14A. What should the current I2 be in the lower wire such that the magnetic field at point P is zero? Express your answer with the appropriate units.

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter12: Sources Of Magnetic Fields

Section: Chapter Questions

Problem 89CP: The accompanying figure shows a flat, infinitely long sheet of width a that carries a current I...

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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.

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