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physical/intuitive understanding of RL/RC time constants?

Discussion in 'Electronic Basics' started by Alan Horowitz, Oct 12, 2004.

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  1. john jardine

    john jardine Guest

    Egads!. You've just given away the secret of Spice Transient Analysis. The
    programmers will be calling for you with torches ablaze.
    Why is it that if anyone wants to *clearly* explain an algorithm or
    sequential idea, they'll use "Basic" or a very Basic looking 'Pseudo-code',
    yet most programmes seem written in "C".
    It just isn't logical.
  2. BobGardner

    BobGardner Guest

    when a current just starts flowing into a RL or RC circuit, how does
    The cap starts out discharged, so a lot of current flows at first, then less
    and less and less as the voltage and charge builds up on the cap. Plot it...
    charging toward 12 volts ... starts at 0, then half way to 12 would be 6, then
    half way to 12 would be 9, then half way to 12 would be 10.5, then half way to
    12 would be..... hey... it might not ever get there!
  3. Peter Lawton

    Peter Lawton Guest

    Time itself is defined by the charging of the capacitor.
    The real question is why a pendulum etc agrees with the charging.
    Peter Lawton
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