Flux is depicted as "lines" in a plane that contains or intersects electric charge poles or magnetic poles. The main parameter while calculating heat transfer is heat flux. The way that this quantity q is flowing is described by its flux. Physics revision site - recommended to teachers as a resource by AQA, OCR and Edexcel examination boards - also recommended by BBC Bytesize - winner of the IOP Web Awards - 2010 - Cyberphysics - a physics revision aide for students at KS3 (SATs), KS4 (GCSE) and KS5 (A and AS level). Flux is the presence of a force field in a specified physical medium, or the flow of energy through a surface. The word “Flux” is originated from the Latin Word ‘Fluxus’ that means flow. Fluxes may have more than one function at a time. There are 3 types of generalized classification is there that helps to distinguish between heat fluxes by convection, heat conduction, and radiation. Flux means an imaginary lines through which a physical quantity can travel. A continuity equation is useful when a flux can be defined. Insights. Note that bold text indicates that the quantity is a vector In metallurgy, a flux (derived from Latin fluxus meaning "flow") is a chemical cleaning agent, flowing agent, or purifying agent. In mathematics and physics flux is used as the basic and global word. This is a list of common physical constants and variables, and their notations. Heat flux is the rate of thermal energy flow per unit surface area of the heat transfer surface, e.g, in a heat exchanger. In electronics, the term applies to any electrostatic field and any magnetic field . Trying to understand flux by looking at a mess of integrals is not the way to go. Isaac Newton first used this term as fluxion into differential calculus. The rate of heat transfer per unit area normal to the direction of heat transfer is called heat flux.Sometimes it is also referred to as heat flux density.In SI its units are watts per square metre (W.m −2).It has both a direction and a magnitude, and so it is a vector quantity. Flux is relatively simple to understand, and is really helpful in vector calculus and physics. Flux describes the flow of a physical property through space and is often coupled with a time variation. Flux is a common phenomenon throughout the natural world and has become a ubiquitous concept throughout physics and mathematics, and hence technology. Heat Flux Density – Thermal Flux. Rosin used as flux for soldering. In physics, there are a large number of physical quantities we include while performing calculations. In electronics, the term applies to any electrostatic field and any magnetic field . List of common physics notations 1 List of common physics notations Latin characters Symbol Meaning SI Unit of Measure area magnetic vector potential Amplitude acceleration meter per second squared (m/s²) or (ms−2) magnetic flux density also called the magnetic field density or magnetic induction tesla (T), or equivalently, First get an intuitive understanding, and the details will make more sense. To make it more convenient for users and easier to use and remember, we often use notations/symbols to represent these physical quantities. They are used in both extractive metallurgy and metal joining. Flux is the presence of a force field in a specified physical medium, or the flow of energy through a surface. A flux is the value of the surface integral of any vector field. If the field is constant over the area of interest, the flux is simply the product of the field and the area. Help with GCSE Physics, AQA syllabus A AS Level and A2 Level physics. 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