ch24-p079 - 79. We note that the net potential (due to the...

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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 = +2 e ). Thus, with D = 4.00 m and e = 1.60 × 10 19 C, we obtain 92 2 1 9 00 0 10 2 2 (8.99 10 N m C )(2)(1.60 10 C) 4 (2 )
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