A thin aluminum rod lies along the x-axis and has current of I = 15.5 A running through it in the +x-direction. The rod is in the presence of a uniform magnetic field, perpendicular to the current. There is a magnetic force per unit length on the rod of 0.133 N/m in the -y-direction. (a) What is the magnitude of the magnetic field (in mT) in the region through which the current passes? mT (b) What is the direction of the magnetic field in the region through which the current passes? O+x-direction O-x-direction O+y-direction O-y-direction O+z-direction O-z-direction

A thin aluminum rod lies along the x-axis and has current of I = 15.5 A running through it in the +x-direction. The rod is in the presence of a uniform magnetic field, perpendicular to the current. There is a magnetic force per unit length on the rod of 0.133 N/m in the -y-direction. (a) What is the magnitude of the magnetic field (in mT) in the region through which the current passes? mT (b) What is the direction of the magnetic field in the region through which the current passes? O+x-direction O-x-direction O+y-direction O-y-direction O+z-direction O-z-direction

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter31: Gauss’s Law For Magnetism And Ampère’s Law

Section: Chapter Questions

Problem 65PQ

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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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A thin aluminum rod lies along the x-axis and has current of I = 15.5 A running through it in the +x-direction. The rod is in the presence of a uniform magnetic
field, perpendicular to the current. There is a magnetic force per unit length on the rod of 0.133 N/m in the -y-direction.
(a) What is the magnitude of the magnetic field (in mT) in the region through which the current passes?
mT
(b) What is the direction of the magnetic field in the region through which the current passes?
+x-direction
-x-direction
+y-direction
-y-direction
+z-direction
-z-direction
O O O O O O
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