ch23-p018 - 18. Eq. 23-6 (Gauss law) gives = qenc. (a) The...

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18. Eq. 23-6 (Gauss’ law) gives ε ο Φ = q enc . (a) The value 52 9.0 10 N m /C Φ=− × for small r leads to q central = – 7.97 × 10 6 C or roughly – 8.0 µ C. (b) The next (non-zero) value that Φ takes is 4.0 10 N m /C Φ=+ × , which implies 6 enc 3.54 10 C. q But we have already accounted for some of that charge in part (a), so the result is
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This note was uploaded on 09/07/2010 for the course PHYS 235 taught by Professor Ed during the Fall '10 term at The Petroleum Institute.

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