Recent content by sotnet

  1. S

    Undergrad Distance between two points in polar coordinate system.

    Guys, Any ideas on how to calculate distance between two points in Polar coordinate system without converting their coordinates to Cartesian? Ps. I know that if I converted from Polar (r, t) to Cartesian (x, y) by x = r.cos(t), y = r.sin(t), then the distance between two points would be d =...
    • sotnet
    • Thread
    • Coordinate Coordinate system Points Polar System
    • Replies: 1
    • Forum: General Math
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    Undergrad Magnetic Dipole Moment - Vector Orientation

    Guys, I don't quite understand the concept of magnetic dipole moment as a vector. Suppose we have a magnet (like a rod) in 3 dimensional space. North pole at (0, 0, 0) and South pole at (0, 1, 0). How would the magnetic dipole vector \vec{m} be oriented? Thanks.
    • sotnet
    • Thread
    • Dipole Dipole moment Magnetic Magnetic dipole Magnetic dipole moment Moment
    • Replies: 2
    • Forum: Electromagnetism
  3. S

    Graduate Energy of magnetic field created by magnetic dipoles in a shphere.

    Dear everyone, I am researching genetic algorithms and at the moment I am trying to solve a problem how would magnetic particles (dipoles) orient themselves in a thin hollow sphere. Suppose that I have N magnetic dipoles placed in the sphere. There is no external magnetic field. The...