Parallel R C circuit impedance calculator is ready

[Patrick Chung]

http://www.cirvirlab.com/simulation/parallel_r_c_circuit_impedance_calculator.php


Higher the frequency, overall impedance is less including real part. Check it and enjoy.

 

[Don Kelly]

http://www.cirvirlab.com/simulation/parallel_r_c_circuit_impedance_calculator.php


Higher the frequency, overall impedance is less including real part. Check it and enjoy.

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.

 

[Adrian C]

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

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.

 

[Don Kelly]

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.

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

 

[Don Kelly]

http://www.cirvirlab.com/simulation/parallel_r_c_circuit_impedance_calculato
r.php


Higher the frequency, overall impedance is less including real part. Check
it and enjoy.

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.

If this guy wants to do something useful, I would suggest him devising a
tool to check if a network polynomial is stable and then synthesize it.
If that is too easy. let him figure out how to synthesize networks
containing pieces of transmission liens.

It could also be that he is an out-in-out troll and we are his victims.

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