Magnets are materials that produce magnetic fields, which attract specific metals. Every magnet has a north and a south pole. Opposite poles attract, while like poles repel. While most magnets are made from metals and metal alloys, scientists have devised ways to create magnets from composite mat...
We are made of atoms that contain electric charges. Why we do not feel any electric force in our daily life? All atoms have moving electric charges. Then, why aren't all materials magnetic? Why do like charges and poles repel, unlike charges and poles attract?
Journal of Magnetism & Magnetic MaterialsNICOLA A H,ALESSIO F.Why are there any magnetic ferroelectrics. Journal of Magnetism and Magnetic Materials . 2002N.A. Hill, A. Filippetti, Why are there any magnetic ferroelectrics? J. Magn. Magn. Mater. 242-245 (2002) 976-979....
This idea is commonly used with low-coercivity magnetic materials, such as iron or Alnico magnets. For example, the magnets used in door and window alarm sensors are usually long, cylindrical Alnico magnets. We discussed the influence of shape on magnetization in some detail in our in-depth ...
researchers are exploring different techniques to produce high-quality graphene. Therefore, reviewed in this article is a brief introduction to graphene and its derivatives along with some of the methods developed to synthesize graphene and its prospective applications in both research and industry. In ...
Note that, in some cases, what may make one material a good thermal insulator, may not make it a good electrical insulator necessarily.Answer and Explanation: Nonmetals are generally good insulators. Conductivity is the determinant for a material's respective ability to electrically insulate. In ...
The small amount of ferrite also reduces some forms of corrosion and helps with weldability. Duplex and Super Duplex Materials: CD4MCu is a duplex stainless steel with magnetic attraction, due to its ferrite content. If you remain concerned about the material’s magnetic properties, please discuss...
aI created chances for the students to retell the story and gave some more information. Most of the students are willing to show their abilities before others. And most of the students hope to be praised and encouraged by the teacher and other students. Therefore I challenged them to retell ...
Which statement best describes why some materials are not magnetic? a) Magnetic materials have many spinning unpaired electrons. b) Paired electrons spin in opposite directions, canceling their magnetic fields. c) Electrons of magnetic materials are loose What will happen when the axis of a b...
a hard disk drive is a traditional storage device that uses spinning disks and magnetic heads to read and write data. it offers large storage capacities at relatively lower costs compared to other storage devices. hard disk drives (hdds) are commonly used in desktop and laptop computers for ...