Problem 3: Figure shows two long parallel wires carrying currents i, and is in opposite directions. What are the magnitude and direction of the net magnetic field at point P? Assume the following values: i₁=15 A, i₂=32 A, and d=5.3 cm.

Problem 3: Figure shows two long parallel wires carrying currents i, and is in opposite directions. What are the magnitude and direction of the net magnetic field at point P? Assume the following values: i₁=15 A, i₂=32 A, and d=5.3 cm.

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter30: Magnetic Fields And Forces

Section: Chapter Questions

Problem 9PQ

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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.

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Problem 3: Figure shows two long parallel wires carrying currents i, and i, in
opposite directions. What are the magnitude and direction of the net magnetic field at
point P? Assume the following values: i₁=15 A, i₂=32 A, and d=5.3 cm.

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