Concepts electromagnetism and electrodynamicsA point charge q located at r 0 near an infinite grounded plane conductor at x=0 has the same potential distribution as a pair of charges q and -q symmetrically placed with respect to the plane. The potential is then given by f(r)=q/(4 p e0) (1/(|r -r0|)-1/(|r +r0|)). The labeled equipotentials in the contour plot can be multiplied by q/(4 p e0) to give their actual values. A point charge q at r 0 either inside or outside a grounded spherical conductor of radius r, centered at the origin, can be solved by placing an image charge -q'=-r/(|r0|) q at r' =r2/(|(Subscript[r, 0]|)2) r 0.You can drag the point charge q, a locator. A checkbox enables you to see the image charge q'. It will go off-scale if the locator is too close to the center of the sphere, but it still contributes to the potentialComponente Curricular::Educação Superior::Ciências Exatas e da Terra::Física