compounds come from the rare earth or Lanthanide series of theperiodic tableof the elements. They were developed in the 1970's and 1980's. As can be seen in the table, these are the strongest of the permanent magnets, and are difficult to demagnetize. However, the Tmax for NdFeB is the...
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While most magnets are made from metals and metal alloys, scientists have devised ways to create magnets from composite materials, such as magnetic polymers. What Creates Magnetism Magnetism in metals is created by the uneven distribution of electrons in atoms of certain metal elements. The irregular...
Hall elements can detect a magnetic field even in the case of a static magnetic field with no change in magnetic flux density. Therefore, Hall elements are used in various applications, such as non-contact switches used in combination with magnets, angle sensors, and current sensors. Geomagnetic...
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Which of these materials are attracted to a magnet? (a) Para-magnets. (b) Ferro-magnets. (c) Dia-magnets. (d) None of the above. Why is metal a good THERMAL conductor but plastic is a worse conductor than metal? Explain. Which elements are used to make p-type semiconductors?
(1) Main group elements (Group IA-VIIA) (2) Noble gases (Group VIIIA) (3) Transition metals (Group B) (4) Inner transition metals Answer and Explanation: We can use the tendency of an element to become cation or anion to determine whether it is a metal or non-...
What are Neodymium Magnets? What is Actinium? What is Francium? What is Thallium? What is Lutetium? What is Ytterbium? What is Erbium? Discussion Comments Byanon31373— On May 04, 2009 what are the uses of promethium? what are the physical properties of promethium?
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