take a point A(x_1,y_1) on a circe centre B (x_2, y_2) and allow the circle to roll along an X-axis; now we all know that the cycloid equation to point A is highly non-linear; so now if we take the point B, we find the problem has been converted into a linear problem;(adsbygoogle = window.adsbygoogle || []).push({});

now do this to E-fields and H-fields between charged points; think about it!

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# Non-linear to linear transformation

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