Finding electric field vector given charge density, using Gauss's Law

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SUMMARY

The discussion focuses on calculating the electric field vector inside a long cylinder with a volume charge density defined as ρv = 0.005r, using Gauss's Law in integral form. The key equations referenced include ∫E · dA = Q/ε0 and ∫vρv = Qenc. The challenge presented is determining the boundary conditions necessary for solving for the enclosed charge Qenc. The user seeks clarification on the notation 'v' in front of ρv, indicating a need for precise understanding of volume charge density in this context.

PREREQUISITES
  • Understanding of Gauss's Law and its integral form
  • Familiarity with electric field concepts and vector calculus
  • Knowledge of volume charge density and its implications
  • Basic proficiency in solving integrals involving cylindrical coordinates
NEXT STEPS
  • Study the derivation and application of Gauss's Law in electrostatics
  • Learn about cylindrical coordinate systems in electromagnetism
  • Explore boundary conditions in electrostatic problems
  • Investigate the implications of varying charge densities on electric fields
USEFUL FOR

This discussion is beneficial for physics students, educators, and anyone studying electromagnetism, particularly those focusing on electric fields and charge distributions in cylindrical geometries.

Lorenzoeblair
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Homework Statement



A long cylinder carries a volume charge density which is proportional to the distance from the axis, ρv=0.005r. Find the vector electric field inside the cylinder using Gauss’ Law in integral form.


Homework Equations



∫E dot dA = Q/ε0
vρv = Qenc

The Attempt at a Solution



I first attempted trying to solve for Qenc using ∫vρv = Qenc, however I run to the issue of not know the boundary conditions. If I knew the boundary conditions, I would then set Qenc/ε = EA and solve for E.
 
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Lorenzoeblair said:
vρv = Qenc

What do you mean with the 'v' in front of ρv?


ehild
 

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