How far do electrons move? A semiempirical investigation of thermal electron-transfer distances in cationic bis(hydrazine) and bis(hydrazyl) mixed-valence compounds.doi:10.1021/JA003848WRobert C. JohnsonJoseph T. HuppAmerican Chemical Society
How do electrons create a magnetic field? Why are iron atoms so strongly affected by magnetic fields? How is a magnetic field produced in an electromagnet? How is the Earth's magnetic field generated? How does Earth's magnetic field resemble a bar magnet?
Describe how the structure of atoms would differ if the Pauli exclusion principle were not valid. What consequences would follow, both at the atomic level and in the world at large? The magnet is not touching the electrons, yet something is causing them to move. Explain what you think is ...
What do a wrecking yard, a rock concert and your front door have in common? They each use electromagnets, devices that create a magnetic field through the application of electricity. Wrecking yards employ extremely powerful electromagnets to move heavy pieces of scrap metal or even entire cars fr...
In an electron microscope, these four things are slightly different. The light source is replaced by a beam of very fast moving electrons. The specimen usually has to be specially prepared and held inside a vacuum chamber from which the air has been pumped out (because electrons do not ...
Plasma is a state of matter in which atoms have been stripped of their electrons, leaving a highly ionized gas. When plasma particles are exposed to a magnetic field, they experience a force called the Lorentz force, causing them to move in a circular or helical path. How does the strength...
What do a wrecking yard, a rock concert and your front door have in common? They each use electromagnets, devices that create a magnetic field through the application of electricity. Wrecking yards employ extremely powerful electromagnets to move heavy pieces of scrap metal or even entire cars fr...
Domain walls, or borders between the neighboring domains, physically move to accommodate domain growth. In a strong magnetic field, some walls disappear entirely. The resulting magnet's strength depends on the amount of force used to move the domains. Its permanence, or retentivity, depends on h...
The 19th century experiment showed that a wire carrying an electric current is a magnet. Since the electrons all move through the wire in one direction, there is a well-defined magnetic field surrounding the wire. The strength of the magnetic field is proportional to the amount of current flow...
False, because the correct statement is: When electrons move, they carry electrical energy from one place to another. True False, because the correct statement is: A magnet is a material or object that produces a magnetic field. True Register to view this lesson Are you a student or a...