A point charge Q is placed a distance r0/2 above the
Chapter 22, Problem 22.57(choose chapter or problem)
A point charge Q is placed a distance r0/2 above the surfaceof an imaginary spherical surface of radius r0 (Fig. 22-43).(a) What is the electric flux through the sphere? (b) Whatrange of values does E have at the surface of the sphere?(c) Is E perpendicular to the sphere at all points? (d) IsGausss law useful for obtaining E at thesurface of the sphere?
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