Magnetic Hot stove

Discussion in 'Physics' started by samjesse, Oct 19, 2009.

  1. samjesse

    Thread Starter Active Member

    Sep 14, 2008
    202
    0
    Hi

    Does any one know the theory behind how the magnetic hot stove top work?
    i.e. Why does a special cocking pan gets hot by just placing it on the top of a magnet plate?
    Links and explanations are most appreciated.

    thx
     
  2. studiot

    AAC Fanatic!

    Nov 9, 2007
    5,005
    513
    These are called induction hobs and contain coils which induce circular currents in a (relatively) high resistivity ferrous material in the solid base of the pan.
    Because of the high resistivity the circulating current dissipates considerable heat and warms the pan.

    Note that, unlike microwaves, this system warms the pan not the food.
     
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