Two long, parallel wires, each with a mass per unit length of 48 g/m, are supported in a horizontal plane by 6.0-cm-long strings, as shown in the figure below. Each wire carries the same current. causing the wires to repel each other so that the angle between the supporting strings is 16º. 6.0 cm ✓ (a) Are the currents in the same or opposite directions? O same direction opposite direction O not enough information to decide (b) Determine the magnitude of each current. 8

Two long, parallel wires, each with a mass per unit length of 48 g/m, are supported in a horizontal plane by 6.0-cm-long strings, as shown in the figure below. Each wire carries the same current. causing the wires to repel each other so that the angle between the supporting strings is 16º. 6.0 cm ✓ (a) Are the currents in the same or opposite directions? O same direction opposite direction O not enough information to decide (b) Determine the magnitude of each current. 8

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter12: Sources Of Magnetic Fields

Section: Chapter Questions

Problem 32P: Two long, parallel wires are hung by cords of length 5.0 cm, as shown in the accompanying figure....

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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, parallel wires, each with a mass per unit length of 48 g/m, are supported in a horizontal plane by 6.0-cm-long strings, as shown in the figure below. Each wire carries the same current I,
causing the wires to repel each other so that the angle between the supporting strings is 16⁰.
6.0 cm
(a) Are the currents in the same or opposite directions?
same direction
opposite direction
not enough information to decide
(b) Determine the magnitude of each current.
A
0

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