79. We note that the net potential (due to the "fixed" charges) is zero at the first location ("at ∞") being considered for the movable charge q(where q= +2e). Thus, with D= 4.00 m and e= 1.60 ×10−19C, we obtain 922190001022(8.99 10 N m C )(2)(1.60 10C)4(2 )
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This note was uploaded on 06/03/2011 for the course PHY 2049 taught by Professor Any during the Spring '08 term at University of Florida.