Q:when the edged were folded over the pad, it held it in place. Gave it to a freind and can‘t find it in any pet supply site anywhere. HELP

Didn't even know they made such a thing.we made a home-made one out of wood, like a picture frame.

Q:Excuse me, are magnetic materials and magnetic materials a kind of saying? Very urgent, thank you

Not a thing. For example, iron is a magnetic material. Without magnetization, it is not a magnetic material

Q:Applications of magnetic materials

The magnetic material is morphologically. It includes powder material, liquid material, block material, film material and so on.The magnetic material application is very wide, from the compass, Horn / headset / microphone, antenna bar, household appliances (electric cooker), transformer, permanent magnet motor until the shuttle can find examples of magnetic materials.

Q:What is magnetic coercivity;give examples of it in at least 1 one experiment?

In materials science, the coercivity, also called the coercive field, of a ferromagnetic material is the intensity of the applied magnetic field required to reduce the magnetization of that material to zero after the magnetization of the sample has been driven to saturation. Coercivity is usually measured in oersted or ampere/meter units and is denoted HC. Coercivity measures the resistance of a ferromagnetic material to becoming demagnetized. Coercivity can be measured using a B-H Analyzer. Materials with high coercivity are called hard ferromagnetic materials, and are used to make permanent magnets. Permanent magnets find application in electric motors, magnetic recording media (e.g. hard drives, floppy disks, or magnetic tape) and magnetic separation. A material with a low coercivity is said to be soft and may be used in microwave devices, magnetic shielding, transformers, or recording heads. As for an experiment, it is used in magnetic information storage. The main challenge in designing magnetic information storage media is to retain the magnetization of the medium despite thermal fluctuations caused by the superparamagnetic limit. If the thermal energy is too high, there may be enough energy to reverse the magnetization in a region of the medium, destroying the data stored there. The energy required to reverse the magnetization of a magnetic region is proportional to the size of the magnetic region and the magnetic coercivity of the material. The larger the magnetic region is and the higher the magnetic coercivity of the material, the more stable the medium is. There is a minimum size for a magnetic region at a given temperature and coercivity. If it is any smaller it is likely to be spontaneously de-magnetized by local thermal fluctuations. Perpendicular recording uses higher coercivity material because the head's write field penetrates the medium more efficiently in the perpendicular geometry. Hope this helps!

Q:The magnetic material used on any occasion is ferrite magnetic material

A compound having a six axis structure with uniaxial anisotropy. Mainly barium, strontium, lead three ferrites and their composite solid solution. Equal magnetic and anisotropic magnetic separation. Due to the disappearance of the external magnetization field, the ferrite can retain a strong permanent magnetic remanence for a long time and can be used to produce a stable magnetic field in the external space. It is widely used, for example, in various types of electric meters, generators, telephones, loudspeakers, televisions and microwave devices, as permanent magnets.

Q:explain how atoms give rise to magnetic properties in certain materials.

i think it has to do with its positive and negative particles. when negative particles get 'excited' they tend to move fast and transfer.

Q:For inductive loops at traffic lights to detect cars, must the cars conduct electricity or a magnetic field?

The car must have at least some parts that can be magnetized, like iron or steel. I doubt if an all Aluminum car would be detectable. Certainly an all plastic car would not be detectable. I'm not sure how much magnetic material a car has to have for the road inductor to sense it. Probably all that's needed is a steel motor block. Some of these all electric cars might not have enough steel to be detected. Basically its like sticking an iron bar inside, or near, a coil. The inductance changes dramatically because the the magnetic field of the coil induces a magnetic field in the bar which adds to the coils field , and that can be measured.

Q:I know it is posable to make magnetic balls multiple componies have made ball magnets will north and south poles and I was wondering how do the make it I heard so melt magnets so how can I do it

If the damage is in the tread area it can probably just be repaired. If you want the same exact tire, look on the sidewall for the brand and the yellow pages to see who carries that brand if it has to be replaced.

Q:Why are some materials magnetic while others are not?

It has to do with the electrons of an atom (((there are three elements (atoms) that are natural magnets Iron, Nickel and Cobalt))) The electrons are the part of any atom that hold the magnetic force - electricity and magnetism are understood to be fundamentally interlinked. With Iron and Nickel and Cobalt the electrons align themselves such that an accumulation of magnetic forces are focused on either end of each atom. Then once you put a bunch of these atoms into a structure such as a iron ingot and then run electricty through the ingot, you will create a bar magnet, it will keep it's magnetism for a long time

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