plz give da ans 2 da point
2006-10-11 06:19:28 · 9 answers · asked by sal 2 in Science & Mathematics ➔ Physics
Let me think.
The Magnetic field is an invisible line of magnetic force.
Even though the lines are not visible long time ago some one came up with a neat trick to make them visible in a plane.
Most of you responding to this Q? must have already figure out where I am going with it.
Experiment:
Take a very strong bar magnet, take a piece of paper. Put the paper on a table. Centre the bar magnet on the paper.
Sprinkle some iron files around the bar magnet evenly.
The files will have a certain pattern. This pattern shows the lines of magnetic force. The whole thing represents the visualisation of magnetic field of this bar magnet.
If for some reason the field does not emerge right away, tap the table gently, the file will start to move and form the pattern. If this fails then get a stronger magnet and Check the files, they may not be iron. Some steels are non magnetic and do not respond. Sprinkling may need practise.
Now do the same with a strong Horse shoe magnate. You will see the deference in the field.
Flux is the measurement of the magnetic force or the field. It may be loosely called flux of the magnetic field or fiel strength.
Some people interchange the flux and the field, they would be correct as long as they have numerical values for the field.
PS
All other answers are good and they have slightly different interpretation of your broad "Q?".
Please do a search on internet and Google, and see what you get.
2006-10-11 06:22:09 · answer #1 · answered by minootoo 7 · 0⤊ 0⤋
In physics, a magnetic field is that part of the electromagnetic field that exists when there is a changing electric field. A changing electric field can be caused by the movement of an electrically charged object, as in an electric current; or a combination of the orbit of an electron around an atom and the spin of electrons themselves, as in a permanent magnet.
Magnetic flux, represented by the greek letter phi, is a measure of quantity of magnetism, taking account of the strength and the extent of a magnetic field. The SI unit of magnetic flux is the weber (in derived units: volt-seconds), and the unit of magnetic flux density is the weber per square meter, or tesla.
Description:
The flux through an element of area perpendicular to the direction of magnetic field is given by the product of the magnetic field density and the area element. More generally, magnetic flux is defined by a scalar product of the magnetic field density and the area element vector. Gauss's law for magnetism, which is one of the four Maxwell's equations, states that the total magnetic flux through a closed surface is zero. This law is a consequence of the empirical observation that magnetic monopoles do not exist or are not measureable.
2006-10-11 14:07:13 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Magnetic field is the region around the magnet where it's influence can be felt.
And Magnetic Flux is the no. of lines of force passing through a unit area in the magnetic field.
2006-10-12 00:37:17 · answer #3 · answered by bazoomber 2 · 0⤊ 0⤋
Magnetic flux is the product of the average magnetic field times the perpendicular area that it penetrates. It is a quantity of convenience in the statement of Faraday's Law and in the discussion of objects like transformers and solenoids. In the case of an electric generator where the magnetic field penetrates a rotating coil, the area used in defining the flux is the projection of the coil area onto the plane perpendicular to the magnetic field.
magnetic field-region in the neighbourhood of a magnet, electric current, or changing electric field, in which magnetic forces are observable.
2006-10-11 13:30:28 · answer #4 · answered by nss280 2 · 1⤊ 0⤋
Flux means flow; so we are looking at the flow within a magnetic field.
The field is defined by the sum of all force vectors due to magnetism. There is no flow implied in the field. We often see a field depicted as static lines of equal magnetic force.
2006-10-11 13:31:19 · answer #5 · answered by oldprof 7 · 1⤊ 0⤋
Magnetic field is comparable to the hydraulic head of a liquid in a reservoir, and magnetic flux is like the flow rate of a liquid along a pipe due to the difference of pressure throughout a pipework.
2006-10-11 13:36:18 · answer #6 · answered by Illusional Self 6 · 0⤊ 0⤋
The parameters of magnetism are best understood when compared with electric field. Therefore magnetic flux is eq to electric current I and maggnetic field is eq to electric field E.. If u visualise this all other relationships will follow easily
2006-10-11 14:08:23 · answer #7 · answered by chetnand 2 · 1⤊ 0⤋
magnetic flux is the no. of magnetic lines passing through per unit area .
flux = BAcosÎ
where as magnetic field is the area in which magnetic lines can be observed.
hey sai r u from dehradun pls reply if u r.
2006-10-11 13:41:52 · answer #8 · answered by juschill 1 · 0⤊ 0⤋
i thought both of them mean the same thing.
2006-10-11 13:50:50 · answer #9 · answered by mad_integer 3 · 0⤊ 1⤋