A long straight wire of a radius of 10.0 cm carries a steady current 40.7 A that is uniformly distributed through the cross-section of the wire. Calculate the magnetic field ( in units of uT) at a distance of 7.5 cm from the center of the wire?

A long straight wire of a radius of 10.0 cm carries a steady current 40.7 A that is uniformly distributed through the cross-section of the wire. Calculate the magnetic field ( in units of uT) at a distance of 7.5 cm from the center of the wire?

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter12: Sources Of Magnetic Fields

Section: Chapter Questions

Problem 38P: A circular loop of radius R carries a current I. At what distance along the axis of the loop is 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 long straight wire of a radius of 10.0
cm carries a steady current 40.7 A
that is uniformly distributed through
the cross-section of the wire.
Calculate the magnetic field ( in units
of µT) at a distance of 7.5 cm from
the center of the wire?

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