Two long straight wires are parallel and carry current in opposite directions. The currents are 8.0 A and 12 A and the wires are separated by 0.40 cm. The magnetic field at a point midway between the wires is: O OT O 4.0 x 10-4 T O 8.0 x 10-4T O 12 x 10-4T O 20 x 10-4 T

Two long straight wires are parallel and carry current in opposite directions. The currents are 8.0 A and 12 A and the wires are separated by 0.40 cm. The magnetic field at a point midway between the wires is: O OT O 4.0 x 10-4 T O 8.0 x 10-4T O 12 x 10-4T O 20 x 10-4 T

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter19: Magnetism

Section: Chapter Questions

Problem 44P: A long, straight wire going through the origin is carrying a current of 3.00 A in the positive...

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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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Two long straight wires are parallel and carry current in opposite directions. The currents are 8.0 A and 12 A and the wires are
separated by 0.40 cm. The magnetic field at a point midway between the wires is:
OOT
O 4.0 x 10-4 T
O 8.0 x 10-4 T
O 12 x 10-4 T
O 20 x 10-4 T

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