magnetic fields

Discussion in 'General Electronics Chat' started by imsusieqtoo, Nov 9, 2004.

  1. imsusieqtoo

    Thread Starter New Member

    Nov 9, 2004
    2
    0
    I have a ? and I hope someone can help me with the answer.
    Strong magnetic fields may best be established in a core made of.
    choices are air, steel, nickel, or cobalt. :blink:
     
  2. mozikluv

    AAC Fanatic!

    Jan 22, 2004
    1,437
    1
    hi susie,

    am not sure how to answer your query. each of those mediums have their own strenght and weaknesses depending on the application. there are apllication where you don't need strong magnetic field. :(
     
  3. singhak

    Member

    Oct 18, 2004
    13
    0
    hi
    the strength of magnetic field depends on the permeability of the material.greater the permeability,greater the strength of the field.it goes in the order
    nickel=~cobalt > steel > air
     
  4. Ramasule

    Member

    Nov 6, 2004
    12
    0
    Most common core in AC Machines is steel with laminated silcon inbetween sheets.
    This is done to reduce eddy currents and give a better hysterises curve (as air does not get magnetically saturated)
     
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