AlonsoMcLaren
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Given the mathematical expression of an electric field, how to find its field lines?
Given an electric field, how to find its field lines?
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As a simple case, take [tex]E_x=f(x,y),\quad E_y=g(x,y)[/tex].
Then solve the differential equation [tex]dy/dx=g/f[/tex] for y(x).
Then solve the differential equation [tex]dy/dx=g/f[/tex] for y(x).
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