Answered: Consider an infinitesimal wire of width…

Consider an infinitesimal wire of width da at position x, magnetic field for this sheet of current at point P is : μου πα Then figure out the following limiting cases: B = •a

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter24: Electromagnetic Waves

Section: Chapter Questions

Problem 5PE: Verify the units obtained for magnetic field strength B in Example 24.1 (using the equation B=Ec )...

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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

3. Sheet of current:
Consider an infinitesimal wire of width dr at position x, magnetic field for this
sheet of current at point P is :
ног
πα
Then figure out the following limiting cases:
B =
• a<d
d <a (Infinite sheet of current)
x=0
tan
-1
a
2d

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