- noun the rate at which heat, energy or radiation flows
- noun a substance applied to the surface of metals when soldering them together
- noun a substance used in ore smelting to aid the removal of impurities
- For a given region, a measure of the strength of a field. For example, that of electric and/or magnetic fields. Flux is usually represented by lines of force.
- For a given region, the magnetic lines of force. The closer together the lines, the greater the strength of the magnetic field. Also called magnetic flux (2).
- For a given region, the electric lines of force. The closer together the lines, the greater the strength of the electric field. Also called electric flux (2).
- The rate of flow of a given quantity across a given area. In the case of light, for instance, the number of photons striking a given surface area perpendicular to its path, per unit time.
- A material which better prepares surfaces for brazing, soldering, or welding. It may do so, for instance, by removing oxides. Also called solder flux.
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