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  2. Orders of magnitude (magnetic field) - Wikipedia

    en.wikipedia.org/wiki/Orders_of_magnitude...

    One tesla is equal to 10 4 gauss. Magnetic field drops off as the inverse cube of the distance ( ⁠ 1 / distance 3 ⁠ ) from a dipole source. Energy required to produce laboratory magnetic fields increases with the square of magnetic field.

  3. Tesla (unit) - Wikipedia

    en.wikipedia.org/wiki/Tesla_(unit)

    The tesla (symbol: T) is the unit of magnetic flux density (also called magnetic B-field strength) in the International System of Units (SI). One tesla is equal to one weber per square metre .

  4. Gauss (unit) - Wikipedia

    en.wikipedia.org/wiki/Gauss_(unit)

    The gauss is the unit of magnetic flux density B in the system of Gaussian units and is equal to Mx/cm 2 or g/Bi/s 2, while the oersted is the unit of H-field. One tesla (T) corresponds to 10 4 gauss, and one ampere (A) per metre corresponds to 4π × 10 −3 oersted.

  5. Van de Graaff generator - Wikipedia

    en.wikipedia.org/wiki/Van_de_Graaff_generator

    A simple Van de Graaff generator consists of a belt of rubber (or a similar flexible dielectric material) moving over two rollers of differing material, one of which is surrounded by a hollow metal sphere. A comb-shaped metal electrode with sharp points (2 and 7 in the diagram), is positioned near each roller. The upper comb (2) is connected to ...

  6. Electric generator - Wikipedia

    en.wikipedia.org/wiki/Electric_generator

    It is also known as a unipolar generator, acyclic generator, disk dynamo, or Faraday disc. The voltage is typically low, on the order of a few volts in the case of small demonstration models, but large research generators can produce hundreds of volts, and some systems have multiple generators in series to produce an even larger voltage. [ 18 ]

  7. 12 of the Most Expensive Mistakes People Have Made - AOL

    www.aol.com/12-most-expensive-mistakes-people...

    “Wouldn’t budge from $62,500 for a downtown loft. Owner wanted 65k. Unit sold for $275,000 1 year later.” – u/EMH55 2. Kids Do the Darndest Things

  8. Oersted's law - Wikipedia

    en.wikipedia.org/wiki/Oersted's_law

    The magnetic field (marked B, indicated by red field lines) around wire carrying an electric current (marked I) Compass and wire apparatus showing Ørsted's experiment (video [1]) In electromagnetism , Ørsted's law , also spelled Oersted's law , is the physical law stating that an electric current induces a magnetic field .

  9. Tim McGraw Looks Almost Unrecognizable Without His ... - AOL

    www.aol.com/lifestyle/tim-mcgraw-looks-almost...

    Tim McGraw might make you do a double take.. On Sunday, Nov. 24, the country star, 57, took a break from his usual look while attending the Beatles '64 premiere in New York City with his wife ...