0
Residual flux refers to the magnetic field remaining in a material after the removal of an external magnetic field. It is important in applications like Transformers and electric motors, as it helps maintain the efficiency of these devices by ensuring continuous magnetic coupling. Residual flux also affects the hysteresis loop of a material, influencing its magnetic properties.
What else can I help you with?
How do you use flux in a sentence?
Doc Brown needs some help fixing his flux capacitor.
How is total residual oxidants related to total residual chlorine?
Total residual oxidants include all chlorine species present in water, which includes both free chlorine and combined chlorine. Total residual chlorine specifically refers to the amount of chlorine left in water after a certain contact time. In summary, total residual oxidants encompass total residual chlorine but also include other chlorine species.
What are the two types of flux used in metallurgy?
The two types of flux used in metallurgy are acidic flux and basic flux. Acidic fluxes are used to remove impurities by forming acidic slag, while basic fluxes are used to form basic slag and improve the flow characteristics of the molten metal.
Method of using expired liquid flux Soldering?
It is not recommended to use expired liquid flux for soldering as the effectiveness of the flux diminishes over time, which can lead to poor soldering results. It is best to use fresh flux to ensure proper soldering and avoid issues such as weak joints or oxidation. Expired flux may also contain harmful chemicals that could pose health risks during soldering.
Why do plumbers use flux?
Plumbers use flux to help clean and prepare surfaces for soldering. Flux removes oxidation and contaminants from the surface, allowing for a stronger bond between the pipes and solder. Additionally, flux helps the solder flow evenly and smoothly, ensuring a proper seal.
How initially voltage build up in an alternator by residual magnetism?
The residual flux will help the phenomenon of changing flux. So that emf generation takes place.
The flux density that remains when the magnetizing force is removed is called?
residual magnetism
What is residualmagnetism?
The retained magnetic flux of the material, even after the removal of the external magnetizing force is known as residual magnetism.
What is flux residue?
When large magnetomotive force is applied to the core and then removed. The flux in the core doesn't reach zero. Instead, a magnetic field is left behind in the core. This magnetic field is called residual flux in the core. MOHSIN BB-EE-NED
Why an input voltage exists for the motor started to move?
because of the residual magnetic flux that exists in the motor initially due to the poles
What is the purpose of flux and state the importance of cleanliness of metals when soldering.?
Gd
Why is residual magnetism is necessary?
'Residual magnetism' isn't something that's 'necessary'; rather, it's something you're stuck with, whether you want it or not! Residual magnetism is due to a phenomenon called 'hysteresis', which is derived from a Greek word, meaning 'to lag'.A bit of background first. If we were to wind an insulated coil around the sample of ferromagnetic material, and pass a current through that wire, we would create and apply magnetic field strength (symbol: H), expressed in amperes per metre, to that sample. This results in a magnetic field being set up within the sample, the intensity of which we call its flux density (symbol: B) expressed in teslas.If we gradually increase the magnetic field strength, the resulting flux density would also increase until a point, called 'saturation' is reached -at this point any further increase in magnetic field strength will NOT increase the flux density. If we were to graph this behaviour, then the result would look something like an elongated 'S', rather than a straight line. This graph is known as a B-H curve.Now, if we were to reduce the magnetic field strength to zero, the magnetic flux density would also reduce towards zero (following a slightly-different curve) but would not reach zero when the magnetic field strength reaches zero -in other words, when we remove the magnetic field strength, the sample 'retains' some flux density -and we call this 'residual magnetism' or, more accurately, 'residual flux density' or 'remanance'. This is what we mean by 'hysteresis' -i.e. changes in magnetic flux density lag behind changes in magnetic field strength.To remove this residual flux density, we would actually need to reverse the direction of the magnetic field strength (by reversing the direction of the current through the coil) until the flux density falls to zero.Different ferromagnetic materials have different values of residual flux density. For example materials that make good permanent magnets have very high values of residual flux density while others, such as metals used to make transformers, electromagnets, etc., have very low values of residual flux density.To summarise, residual magnetism is something that occurs naturally and the amount of residual magnetism depends on the type of magnetic material involved. It's not a matter of being 'necessary', it's simply a characteristic of ALL magnetic materials.
Why an input voltage exists for the motor just started to move?
because of the residual magnetic flux that exists in the motor initially due to the poles
Why dc series motor is always runs at loads?
At no load, the flux is only due to the residual flux, which is very small. the no load speed of dc series motor is very high. so the rotating part of the motor are damaged. hince dc series motor should never be run without motor.
Difference between flux linkage and flux leakage?
i) leakage flux is those flux which goes through the air and linkage flux is those flux whose go through the cell. ii)leakage flux is the loss at flux but linkage flu is warning flux. iii)leakage flux is cause of eddy current loss and linkage flux is case of copper loss.
What is leakage factor?
The Ratio of the total flux ( flux in iron path) to the useful flux (flux in air gap)
Difference between mutual flux and leakage flux?
when a current flow through the coil then flux produced around the coil . if the flux linked same produced coil only then the flux is said to be leakage flux. flux produced by one coil ,but linked with another coil then the flu is said to be mutual flux.
