Electric Field Lines: Symmetry between Opposite Charges

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Electric field lines between two opposite charges are symmetric when the charges are equal in magnitude but opposite in sign. For unequal charges, such as -2 and +4, the symmetry breaks down, particularly regarding left-right symmetry about a plane perpendicular to the axis connecting the charges. While symmetry is maintained along the axis connecting the two charges, the overall field distribution becomes asymmetrical if the charges differ. The discussion highlights the importance of defining the type of symmetry being referenced. Understanding these nuances is crucial for accurately analyzing electric fields in various charge configurations.
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I know that the electric field lines between two oppositely charged points are symmetric, but I can't seem tof ind any refrence as to when this symmetry breaks down.

I want to say that electric field lines do not maintain symmetry if the two charges are not equal but opposite, e.g. a -4 and +4 charges produce symmetric field lines, but -2 and 4 will not. Is this the case?
 
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Depends on what symmetry you are talking about. About the axis that connects the two charges, I believe you will always have symmetry with just the two charges. But if you mean left-right symmetry about a plane that is between the two charges and perpendicular to the axis between them, then if the charges are not equal, then the field will not be symmetrical on the two sides of the plane.
 
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