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What are the forces acting between two masses?

  1. Jun 25, 2013 #1
    what are the forces acting between two masses?can anyone explain how magnetic field is generated and what are the differences between magnetic and electric field?
     
  2. jcsd
  3. Jun 25, 2013 #2

    tiny-tim

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    hi abi.ayan! :smile:
    too complicated! :yuck:
    the only way of making a magnetic field is by moving a charged particle

    (usually an electron along a wire, or an electron in a tiny circle in a material)
    they both only act on charged particles, by a force

    the electric force on a charged particle does not depend on what the particle is doing

    the magnetic force on a charged particle depends on the speed and direction of the particle (and is always perpendicular to the direction of the particle … for example, a loop of current in a magnetic field can be moved sideways to the loop, which is how a magnet attracts iron)
     
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