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Electric Field Sources or Generators

Discussion in 'Misc Electronics' started by emma, Jun 27, 2005.

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  1. emma

    emma Guest

    To create source of magnetic field. You only need wires as
    the current passing thru them can create it. The electric
    field in the wires is null because there is a cancellation
    inside the positive lattice and electrons.

    I'd like to build a very strong source of electric field
    only. Can I use two big kitchen plates and connect each
    of them to positive and negative of a car battery? Would
    this create electric field in the middle.

    Pls. mention all sources that produce electric fields
    with minimal magnetic field present. Beside the
    capacitor concept. How else could you creates source
    of electric field where the electrons charge become
    bare and no cancellation from the atomic lattice.

    Does this mean there are positive and negative sources
    of electric field that can be built using circuits.
    For example, if you force out electrons from a certain
    material, does it produce a positive electric field
    from the positive ions left? What materials can do
    this?

    Thanks.

    emma
     
  2. Dave

    Dave Guest


    the most obvious ones are van de graff generators that can create very large
    fields with a tiny current by moving electrons from one electrode to the
    other.

    sure, any circuit that moves electrons creates an electric field. however
    if you start with neutral matter you end up with symmetric positive and
    negative charges, you can only separate them not create them separately.
    any material can do this, its just easier with some than others and it
    depends on what you are trying to do.
     
  3. Uncle Al

    Uncle Al Guest

    Rub your feet on the carpet during a dry day.
    van de Graff generator (DC continuous). Wimshurst generator (DC
    continuous or pulsed). Marx generator (DC pulsed). Tesla coil (kHz
    AC). Snap together 100 transistor batteries in a row - that's 900 V
    end to end (DC continuous).
    Sure, 12 whole volts, except for the plates. 12 V can kill you.
    Rub your feet on the carpet during a dry day.
    You shouldn't be trusted with anything electrical until you have
    something useful between your ears.
     
  4. Old Man

    Old Man Guest

    Moderate potential on a small conducting sphere. Point
    of a needle. The sharp edge of a razor blade.

    [Old man]
     
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