ফ্লাক্স: সংশোধিত সংস্করণের মধ্যে পার্থক্য
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ট্যাগ: মোবাইল সম্পাদনা মোবাইল ওয়েব সম্পাদনা উচ্চতর মোবাইল সম্পাদনা |
সম্পাদনা সারাংশ নেই ট্যাগ: মোবাইল সম্পাদনা মোবাইল ওয়েব সম্পাদনা উচ্চতর মোবাইল সম্পাদনা |
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১ নং লাইন:
{{কাজ চলছে/২০২১}}
{{about|the concept of flux in natural science and mathematics}}
[[File:General flux diagram.svg|thumb|upright=1.5|The field lines of a [[vector field]] '''F''' through surfaces with [[unit vector|unit]] normal '''n''', the angle from '''n''' to '''F''' is θ. Flux is a measure of how much of the field passes through a given surface. '''F''' is decomposed into components perpendicular (⊥) and parallel ( ‖ ) to '''n'''. Only the parallel component contributes to flux because it is the maximum extent of the field passing through the surface at a point, the perpendicular component does not contribute. '''Top:''' Three field lines through a plane surface, one normal to the surface, one parallel, and one intermediate. '''Bottom:''' Field line through a [[curved surface]], showing the setup of the unit normal and surface element to calculate flux.]]
[[Image:Surface integral - definition.svg|thumb|upright=1.5|To calculate the flux of a vector field <math>\mathbf{F}</math> ''(red arrows)'' through a surface <math>S</math> the surface is divided into small patches <math>dS</math>. The flux through each patch is equal to the normal (perpendicular) component of the field, the [[dot product]] of <math>\mathbf{F}(\mathbf{x})</math> with the unit normal vector <math>\mathbf{n}(\mathbf{x})</math> ''(blue arrows)'' at the point <math>\mathbf{x}</math> multiplied by the area <math>dS</math>. The sum of <math>\mathbf{F}\cdot\mathbf{n} dS</math> for each patch on the surface is the flux through the surface]]
'''Flux''' describes any effect that appears to pass or travel (whether it actually moves or not) through a surface or substance. A flux is a concept in [[applied mathematics]] and [[vector calculus]] which has many applications to [[physics]]. For [[transport phenomena]], flux is a [[Euclidean vector|vector]] quantity, describing the magnitude and direction of the flow of a substance or property. In [[vector calculus]] flux is a [[Scalar (physics)|scalar]] quantity, defined as the [[surface integral]] of the perpendicular component of a [[vector field]] over a surface.<ref>Purcell,p22-26</ref>
==সংজ্ঞা==
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