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where is the energy stored in a electromagnetic field?

Discussion in 'General Electronics Discussion' started by leonheard, Apr 6, 2013.

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  1. leonheard

    leonheard

    12
    0
    Jan 25, 2013
    correct me if am wrong.....

    a capacitor stores energy from its electric field

    and inductor (coil) stores energy from its magnetic field



    1. an inductor (coil) creates an electromagnetic field

    2. there is an electric field and magnetic field in an electromagnetic field

    3. the energy is stored in the magnetic field, but… is the energy also stored in the electric field?

    am confused, please help, thanks
     
  2. Harald Kapp

    Harald Kapp Moderator Moderator

    10,025
    2,138
    Nov 17, 2011
    ...only if the current is AC. If you apply DCc to a coil, you will find only a megnetic field.
    If you apply AC of low frequency to a coil, the electric component of the field is small compared to the magnetic component.
     
  3. leonheard

    leonheard

    12
    0
    Jan 25, 2013
    thank you so much!
     
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