- #1

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Let:

[tex]R = 10 \mbox{ cm}[/tex]

[tex]r = 17 \mbox{ cm}[/tex]

Gauss's Law:

[tex]Q _{\mbox{Enc}} = \epsilon _0 \Phi = \epsilon _0 \oint \vec{E} \cdot d\vec{A} = -\epsilon _0 EA = -\epsilon _0 E \left( 4 \pi r^2 \right) \approx -3.6 \times 10^{-9} \mbox{ C}[/tex]

**Is there anything wrong here? I am not sure.**

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**Any help is highly appreciated.**