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(a) A hollow, conducting spherical shell, of radius 3.50 cm, has charge ?9.14×10?5 C. What is the strength of the electric field 2.50 m from the center of the sphere?

(b) What is the direction of the field?

(c) A solid conducting sphere of the same radius has charge +9.14×10?5 C. What is the strength of the electric field 2.50 m from the center of the sphere?

(d) What is the direction of the field?

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