what is flux in physics Flux and fluence are two terms that are commonly used in physics and engineering particularly in the fields of electromagnetism and radiation While they may sound similar they actually refer to two distinct properties Flux is a measure of the flow of a physical quantity through a given area or surface
Flux is measured using a device called a fluxmeter which uses a coil and a magnet to measure the amount of magnetic flux passing through the coil Current on the other hand can be measured using an ammeter which is a device that measures the flow of electric charge through a conductor 5 What are some real life applications of flux and FAQ Calculating Luminous Flux Solving for Total Light Output in a Room 1 What is luminous flux Luminous flux is the measure of the total amount of visible light emitted by a source per unit of time It is measured in lumens lm and is used to quantify the brightness of a light source 2
what is flux in physics
what is flux in physics
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1 What is flux and how is it related to physics Flux is a measure of the flow of a physical quantity through a given surface In physics it is often used to describe the flow of energy force or particles through a surface Flux is an important concept in many areas of physics including electromagnetism fluid dynamics and thermodynamics 2 So we have sunlight heat flux neutron flux in a reactor the flow of fluid or fluid flux and many other instances of flux The flux is the sum or total over that whole area The flux density is the magnitude and direction of the flux at a particular point in the flow For some fluxes there is a different flow in different directions
This can be represented by the equation momentum flux density x velocity x surface area 3 What are the units of momentum flux The units of momentum flux vary depending on the system being measured In the SI system momentum flux is measured in kg m 2 s while in the CGS system it is measured in g cm 2 s The angle directly affects the value of electric flux by determining the amount of the electric field that is perpendicular to the surface of the object The greater the angle the smaller the value of the cosine and therefore the smaller the value of electric flux 4 What happens to the electric flux if the angle is 90 degrees
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Question 5 How are flux and current used in practical applications Flux and current are used in a variety of practical applications such as in electrical engineering physics and materials science They are essential for understanding and designing devices such as motors generators and transformers Incoming flux and outgoing flux are terms used in physics to describe the flow of energy or particles through a specified area or boundary Incoming flux refers to the amount of energy or particles entering a system while outgoing flux refers to the amount leaving the system 2 How is incoming flux and outgoing flux measured
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what is flux in physics - The angle directly affects the value of electric flux by determining the amount of the electric field that is perpendicular to the surface of the object The greater the angle the smaller the value of the cosine and therefore the smaller the value of electric flux 4 What happens to the electric flux if the angle is 90 degrees