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Introductory Physics Homework Help
Electrostatics and symmetry
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[QUOTE="ShaddollDa9u, post: 5762702, member: 623042"] [h2]Homework Statement [/h2] "Find the direction and the variables which the electrostatic field depends on at all points of the plane (xOy) uniformly charged with the density of positive charges ϱ" [B][h2]The Attempt at a Solution[/h2][/B] So first of all, I have to study the Invariances of symmetry. I tried to switch to the cylindrical coordinate system (Ur, Uθ, Uz) and I observe that there is an Rotational symmetry following Uθ and a Translational symmetry following Uz, which made me conclude that the electrostatic field only depends on r.[B] 2. Homework Equations [/B] However, my teacher found that there is a Rotational symmetry following Uθ and a Translational symmetry following Ur, which means that the field only depends on z. Shouldn't it be the opposite ?? How did he find so ?? Thank you [/QUOTE]
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Electrostatics and symmetry
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