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Infinite wire / E HTML5


The electric field of an infinite, uniformly charged wire is calculated by applying Coulomb's law and the principle of superposition of electric fields.

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Learning goals

  • To illustrate the geometric construction based on the principle of superposition and the symmetry of the distribution.
  • To visualize the projections that go into obtaining the vector sum.
  • To pass back and forth between vectors and lines of force
  • To observe the link between the electric field and the mapping of the lines of force.