What it well does.. it "confirms" it !So then how do you prove KCL?
What’s the program you use? Or is it a website? Looks very handy.I = I1 + 12 + 13 +...
V/Rt = V/R1 + V/R2 + V/R3 +...
KCL = Sum of all cuurrents entering a node = Sum of all currents leaving a node.
20A entering and 20A leaving.
View attachment 169741
The voltage drop across each resistor is the same AS the source voltage. Nothing is added.If the votage drop over each risistor adds up to the supply voltage and the current through each parrallel resistor adds up to total current (IT) it simply proves that your calculations are correct. It does not proof the law !
from https://isaacphysics.org/concepts/cp_kirchhoffs_laws
Kirchhoff's laws are fundamental to circuit theory. They quantify how current flows through a circuit and how voltage varies around a loop in a circuit. Kirchhoff's current law (1st Law) states that current flowing into a node (or a junction) must be equal to current flowing out of it. This is a consequence of charge conservation. Kirchhoff's voltage law (2nd Law) states that the sum of all voltages around any closed loop in a circuit must equal zero. This is a consequence of charge conservation and also conservation of energy.
Over parrallel resistors..yes ! Add one in series ?The voltage drop across each resistor is the same AS the source voltage. Nothing is added.
Ask yourself if your results make sense.Simulation result for Post #1 Question.
View attachment 169736
Simulation result for Post #5 Question.
View attachment 169737
But you have to be able to find the total current independently of the current in each of the resistors.Thanks for that I see were I was going wrong. You need to find the total current in this case 20A, then if you look at the amps going into each of the resistors it should add up to the total current.
NO! That proves NOTHING!I = I1 + 12 + 13 +...
V/Rt = V/R1 + V/R2 + V/R3 +...
KCL = Sum of all cuurrents entering a node = Sum of all currents leaving a node.
20A entering and 20A leaving.
View attachment 169741
KCL and KVL are each a special case of Maxwell's Equations under specific conditions. KCL results from the constraint that the volume involved does not store net charge. KVL results from the constraint that the electric field is conservative. If either of those constraints are not met (and there are plenty of real-world situations in which this is the case), then the corresponding "law" simply does not apply and can be violated quite easily.So then how do you prove KCL?
Ok ..i get the hint ! PROVE (on the lighter side)But you have to be able to find the total current independently of the current in each of the resistors.
If you find the total current of 20 A by adding up the three given currents, then it proves nothing if you then "prove" that this is what you get by adding up the current in each resistor. Once again, circular reasoning.
#10 !#22 !
Did you read what you wrote and what I quoted?Over parrallel resistors..yes ! Add one in series ?
Ok Joe ...sorry !Did you read what you wrote and what I quoted?
I only pointed it out for you to read the stuff you write. If that didn't make sense to you, it sure didn't make sense to me, other then it could be an English as a Second Language issue.Ok Joe ...sorry !
What are you trying to tell me ? Must i post in my mother tongue. It is Afrikaans.I only pointed it out for you to read the stuff you write. If that didn't make sense to you, it sure didn't make sense to me, other then it could be an English as a Second Language issue.
Exercise care (due diligence) in all your work. WBahn always give the advice on "does your answer make sense?"and "Track your units." Those tidbits will help you in your future analysis.
Try not to take anything too personally. I have NO doubt that your English is far, far better than Joe's, or my, ability to communicate in your native tongue (though Joe might surprise us both). I know I for one respect anyone's ability to write in more than one language.What are you trying to tell me ? Must i post in my mother tongue. It is Afrikaans.
Thank you Sir.. i could not phrase it better.Try not to take anything too personally. I have NO doubt that your English is far, far better than Joe's, or my, ability to communicate in your native tongue (though Joe might surprise us both). I know I for one respect anyone's ability to write in more than one language.
But also keep in mind that this IS an English-language forum. So don't be surprised when there are glitches in communication due to this being a second language for you (heck, there are plenty of glitches amongst us native-English speakers!). When someone points something out, look at it as both an opportunity to clear up that particular miscommunication, but also an opportunity to improve your overall ability to communicate in English. I assure you, many of us are continually doing the same thing.
by Jake Hertz
by Jake Hertz