Flux

j

gives total transport rate

\int_{S} j \cdot n d S

, where

n

is the unit normal vector. A conservation law relates its divergence to the local change in the quantity's density.

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Flux by

Flux can refer to several different concepts depending on the context. Here are some of the most common interpretations: 1. **Physics and Engineering**: In physics, "flux" often refers to the rate of flow of a physical quantity through a surface. For instance, electromagnetic flux refers to the amount of electromagnetic field passing through a given area, while magnetic flux refers to the amount of magnetic field.