A wire of length L carries a current I, going from west to east, in the presence of a magnetic field B that is pointing vertically up. The wire moves a distance d to the south. The work done by the magnetic force on the moving charges is • +ILIB.. O -ILBA. O +IL²B/d. O -IL²B/d. O zero,

A wire of length L carries a current I, going from west to east, in the presence of a magnetic field B that is pointing vertically up. The wire moves a distance d to the south. The work done by the magnetic force on the moving charges is • +ILIB.. O -ILBA. O +IL²B/d. O -IL²B/d. O zero,

Physics for Scientists and Engineers, Technology Update (No access codes included)

9th Edition

ISBN:9781305116399

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter30: Sources Of The Magnetic Field

Section: Chapter Questions

Problem 30.13P: A current path shaped as shown in Figure P30.13 produces a magnetic field at P, the center of the...

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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

A wire of length L carries a current I, going from west to east, in the presence of a magnetic field B that
is pointing vertically up. The wire moves a distance d to the south. The work done by the magnetic
force on the moving charges is
Pani+ O
O -ILB..
O +IL²B/d.
O -IL?B/d.
O zero.

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