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Consider two spherical shells with radii R1 < R2 with the inner shell having the potential...

Consider two spherical shells with radii R1 < R2 with the inner shell having the potential Φ(ϑ)=Φ1×cos^2(ϑ), ϑ being the azimuthal angle in spherical coordinates. The outer shell is metallic and uncharged (Q2 = 0). Calculate the potential Φ(r) on the entire space. Thanks a lot.

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