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Parallel R C circuit impedance calculator is ready

Discussion in 'Electrical Engineering' started by Patrick Chung, Nov 7, 2013.

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  1. Don Kelly

    Don Kelly Guest

    For whom is this simulation (as well as others) intended?
    It is not a teaching tool-except for you in practicing programming.

    I have a 25-30 year old HP calculator that can do the same thing and, in
    addition, store the result for later use (after all the whole purpose
    of the calculation is to get a circuit reduction for such use).

    If one wants to learn basic circuit analysis - then suggest going to
    basics to figure out the relationship and then explore- seeing very
    quickly how frequency affects the impedance [ R/(1+jRwC)] which can
    quickly be sketched.
  2. Adrian C

    Adrian C Guest

    I've got a deep seated feeling reading a lot of "developing world" posts
    to newsgroups and web forumns from students that are based in countries
    suffering poor levels of technical teaching, that the confused students
    themselves are trying also to get to grips with the technical or
    coloquial American or British use of English.

    If they had been set an assignment question straight out of a textbook
    the easy (some would say cheat) way to climb the mountain is either to
    find online the "solutions manual" the textbook publishers normally
    share with educators, or some other resource - these calculators? - so
    that the answer can be completed, and maybe something learnt but not the
    important longhand theory based method of doing things correctly in the
    first place, which lends itself to adaption when the circumstances of
    the problem changes.

    The standard of doing the education plainly needs raising. Teaching
    texts need proper language localisation, and teachers need to be trained
    properly to explain what they are teaching rather than reading a foreign
    textbook line by line to them and doing the questions at the end of the
    chapter. The kids are smart, but are being let down.
  3. Don Kelly

    Don Kelly Guest

    What you have said is true.
    However I am not sure that the original post is a "developing country"
    problem. It is a problem in our "advanced" countries. It shows up at
    universities at all levels- we can give students a bag of tools but need
    to challenge them with problems that may not fit the rote examples.
    What is missing is often what is the most important part of education-
    encouraging the concept of "thinking". I can give examples (including
    some that I blew but learned from).

    Don Kelly
    remove the cross to reply
  4. Don Kelly

    Don Kelly Guest

    Ah, but with liens, you are getting into lawyer territory- there be
    dragons- not trolls!
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