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7. Why are electric field lines perpendicular to surface of a conductor? Sketch the electric ficid lines ioruniformly charged hollow cylindermatrials

Answer»

supposeelectric field linesare notperpendicularto the localsurface of the conductor. Thenelectric fieldwill have some component parallel to thesurface. ... So, forsurfaceto be equipotentialsurfacefor static charge distribution thefield linesat thesurfaceareperpendicular to the surface.



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