Q:If yes please send me the sample?

As alluded to earlier, the only dust (small particulate) collection done that might resemble magnetic would be what is commonly called electro-static precipitators. This system uses charging bars to ionize the incoming particulates and plates to collect the particles. Most commonly used in the energy industry (coal fired power plants), but also used in other industries (example in paper industry on black liquor boilers). You should be able to do a search on electrostatic precipitators and get lots of examples and contact information for companies that design them.

Q:What is magnetic material?

A ferromagnetic material having a ferromagnetic order, and a broad range of weakly magnetic and antiferromagnetic materials that can be applied to its magnetic and magnetic effects.

Q:how does electricity or magnet make iron / steel magnetic?

Iron and steel are both 'ferrous' materials . this means that they have particles which can be affected by a magnetic field. The particles tend to align themsleves with the magnetic 'flow' . kind of like leaving a boat tied to shore but in a current. Eventually, the bow will point upstream toward the flow (and the point to which it's tied!), while the stern points downstream. Once the particles get aligned, they tend to stay that way . thereby creating their own 'magnetic' effect. Some materials have more ferrous particles than others, which is why some are easier to magnetize than others! By the way - electrons are not 'magnetic' particles. They are subatomic particles that carry an overall negative electrical charge. Electrons don't get influenced by magnetic fields.

Q:My younger brother is doing a project this weekend and he needs some information on what materials can stop a magnetic field. which sounds much better than a project on armpits. (his original choice) please help.posting links would help a lot too. (:

Yes, call the animal shelter so that trained professionals can help try to save them. Go away and leave the area and babies quiet, and let the mother come back if she tries, so that animal control can relocate the whole family group. Their chances are much better that way.

Q:can magnets repel or attract through lead?

You have asked through lead.Yes it is possible. Any material passes the magnectic waves.But the rate of conduction of magnetic waves differs from metal to metal.

Q:This is a hard question i will be impressed if u can answer!

The general equation used for the design of electrical transformers is E4.44fNAB where E is in volts, f is in Hz, N is the number of turns, A is cross section of the magnetic path in sq.m and B is the induction in Tesla. B permeability of the magnetic core x H where H NI/l, I being current in ampere and l is the magnetic path length in meters. Once the magnetic core material is chosen, the maximum permissible B is decided upon to avoid saturation. Permeability is considered constant in the operating range of temperature and and current. Eddy current is considered to be contributing only to the rise in temperature of the core. What remains to be decided in the design is only to arrive at the values of A and N. The only conflict that I could see is that there is no direct or independent relation between the Power of the transformer, A and N. In practice, an empirical equation like Cross sectional area of the core ( cm^2) square root of P or 0.8x square root of P is used depending on the quality of the magnetic material chosen. Here P is in volt xampere. E is proportional to magnetic flux or rate of change of magnetic flux. But that is not enough to establish a power relation.

Q:6.) What are the differences and similarities between dielectrics and magnetic materials? 7.)Why is that a compass needle always points North (or does it?)

STP is the most widely used product for this. It helped me improve mileage for that tank of gas. It states to clean the engine's internals and make it more efficient, but I am not sure how true that is. I recently changed my dirty air filter and that has help nicely. Also beware of which gas station's gas you choose they make a difference!

Q:It is made from rocky materials and has an iron core and the tidal heating keeps everything from freezing. So shouldnt it have a magnetic field?

The iron seems to be chemically bound up as Fe2S3, not a magnetic material

Q:Would we affect the polar alignment of the earth? Would Anthing happen at all?

Depends if you're including the Earth's magnetic core or not really. If you moved that then yes; a lot would change.

Q:What makes a magnet work?

if a conductor has all its magnetic domains aligned in the same direction the material is a magnet