P25_013 - 13. (a) The potential difference is VA − VB =...

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Unformatted text preview: 13. (a) The potential difference is VA − VB = = q q − 4πε0 rA 4πε0 rB 1.0 × 10−6 C 8.99 × 109 N · m2 C2 1 1 − 2.0 m 1.0 m = −4500 V . (b) Since V (r) depends only on the magnitude of r, the result is unchanged. ...
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