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A Conducting Sphere of Radius 20

Question 19

Multiple Choice

A conducting sphere of radius 20.0 cm carries an excess charge of +15.0 µC,and no other charges are present.(k = 1/4πε0 = 8.99 × 109 N ∙ m2/C2) The potential (relative to infinity) due to this sphere at a point 12.0 cm from its center is closest to


A) zero.
B) 674 kV.
C) 1130 kV.
D) 3380 kV.
E) 9380 kV.

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