# Vector field flux

michael892
Given is vector field
$$\overrightarrow{C}(\overrightarrow{r})=r$$
calculate flux
$$\Phi =\int_{S} \overrightarrow{C}\cdot d\overrightarrow{A}$$
through sphere S with beginning in [0,0,0] and r=1

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michael892
i know i had to calculate surface integral but i didnt have multivariable calculus yet