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Moving rod inside a coil

Discussion in 'Electronic Design' started by [email protected], Mar 19, 2008.

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  1. Guest

    I have to mathematically model a metal rod moving inside a coil. When
    I move the rod through the field, the emf is induced between the ends
    of the rod causing current to flow. This will recharge a large
    capacitor able to supply the necessary current to a resistive load.
    Can somebody help me out to design the components of this system
    (using formulas if possible) in order to recharge a capacitor of 47mF
    with 3V? Any help is really appreciated.
  2. Guest

    Try these on for size:

    Or crack open a decent Physics text.

    Surely you mean a MAGNET moving inside a coil, instead of just "a
    metal rod moving inside a coil"?

  3. sycochkn

    sycochkn Guest

    the voltage on a capacitor is.

    1 farad * 1 amp * 1 second = 1 volt.
    C * I * T = E

  4. Robert Baer

    Robert Baer Guest

    Rather unclear.
    Is that rod magnetic?
    How is that (magnetic?) field produced? Current thru the coil or
    magnetized rod?
    So thenyou say an emf is produced causing a current to flow; only
    momentary and thus creating (a momentary) a voltage potential between
    the rod ends - - but wait - - is ther something connected to them?
    Cannot say the capacitor, as it is possible the magnetized rod
    induced a current in the coil to charge the capacitor.
    And where did that 3V come from?
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