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• n  the lines of force surrounding a permanent magnet or a moving charged particle

• magnetic flux
• flux

News & Articles

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• 3D magnetic field measurement
  ( Fraunhofer-Gesellschaft ) Magnetic field sensors are a contact- and wear-free means of measuring the position of machine parts and products. A new generation of Hall sensors is now making the process even more precise and free of interference.
  June 25, 2013 - EurekAlert!
• Sounding rocket to study electric currents in atmosphere
  Swirling through Earth’s upper atmosphere is a layer of charged particles called the ionosphere. Constantly on the move, currents through the ionosphere can be much more complicated than winds at lower altitudes, because the currents vary in concert with magnetic fields around Earth and solar activity. read more        
  June 25, 2013 - TG Daily