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Imagine a horizontal surface in the x-y plane a distance h below the of the sphere,...

Imagine a horizontal surface in the x-y plane a distance h below the of the sphere, which is located at (0,0,0). For any point (x,y,-h) on the surface, located a distance r from the of the sphere, give an expression for the electric field strength in terms of x, y and h.

For any point (x,y,-h) on the surface, express the magnitude of the x, y and z components of the electric field in terms of x and y respectively.

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