P25_053 - 53. (a) The electric potential is the sum of the...

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53. (a) The electric potential is the sum of the contributions of the individual spheres. Let q 1 be the charge on one, q 2 be the charge on the other, and d be their separation. The point halfway between them is the same distance d/ 2(=1 . 0 m) from the center of each sphere, so the potential at the halfway point is V = q 1 + q 2 4 πε 0 d/ 2 = (8 . 99 × 10 9 N · m 2 / C 2 )(1 . 0 × 10 8 C 3 . 0 × 10 8 C) 1 . 0m = 1 . 80 × 10 2 V . (b) The distance from the center of one sphere to the surface of the other is d R ,where R is the radius of either sphere. The potential of either one of the spheres is due to the charge on that sphere and
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This note was uploaded on 11/12/2011 for the course PHYS 2001 taught by Professor Sprunger during the Fall '08 term at LSU.

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