Engineering electromagnetics field theory

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SUMMARY

The discussion centers on the application of Engineering Electromagnetics by William Hayt, specifically the 7th edition, in solving a problem related to the total charge in a 2 cm length electron beam. The problem involves integrating the volume charge density to determine the total charge, despite the beam being characterized as a line charge. Participants question the relationship between line charge density and the beam's physical width, with a suggested width of approximately 0.5 mm for the electron beam. This highlights the importance of understanding charge density types in electromagnetic field theory.

PREREQUISITES
  • Understanding of charge density concepts, including volume charge density and line charge density.
  • Familiarity with integration techniques in the context of electromagnetic theory.
  • Basic knowledge of electromagnetic field theory principles.
  • Proficiency in using the textbook Engineering Electromagnetics by William Hayt, 7th edition.
NEXT STEPS
  • Research the differences between volume charge density and line charge density in electromagnetic contexts.
  • Study integration methods for calculating total charge from charge densities.
  • Explore the physical characteristics of electron beams, including their width and implications for charge calculations.
  • Review numerical examples in Engineering Electromagnetics by William Hayt to reinforce understanding of charge density applications.
USEFUL FOR

Students and professionals studying electromagnetic field theory, particularly those using Engineering Electromagnetics by William Hayt, and anyone seeking to deepen their understanding of charge density calculations in electron beams.

sarwansagar
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I am taking a course in Electromagnetic Fields Theory, and the prescribed book for us is Engineering Electromagnetics by William Hayt. We are referring to its 7th edition, in one numerical Example 2.3 we have to find total charge contained in 2 cm length electron beam where as we are given the volume charge density of it hence by integrating that we come to know the required total charge. my question is that we have the find total charge contained in 2 cm length then how can we have its volume density despite of its line charge density? a beam of electrons is sharp line.
 
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The electron beam still has a width, a little googling and numbers like .5mm came up. Do you have any clues as to what the beam width might be?
 

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