I have a question about my Physics Stack Exchange post: solving a biot savart problem to completion

I'm gonna be honest, this seems like a classic "close because of miscellaneous reason not related to what I voted for" that is seen across stack exchange, but I'm going to nonetheless ask: What can I do to clarify my question to make it more clearly state the question?


Your question was closed because... well...it is unclear.

  1. You do not specify what $r$ is and instead you expect the readers to divine it for you. To be specific how can you expect someone who was not present at the lecture to

provide some context about how you would find $\hat r$ and $r$?

  1. What is the problem here? Is it the integration?
  2. You claim

    For the most part, it's just a big QED, because it's calculus, not electromagnetism.

I don’t understand what that means. You have an integral to evaluate hence it is a calculus problem.

  1. What do you mean by QED? Quid est demonstratum (which I presume must be right) or quantum electrodynamics?
  2. What are $X$, $Y$ and $Z$?

To be blunt this is a simple example, and this or similar are found in many textbooks. Did you consult any of them?

  • $\begingroup$ i don't think toy read the question. the problem is posed right before the examples... $\endgroup$ – tuskiomi Dec 9 '18 at 0:10
  • $\begingroup$ would it help if i posted the standard form of biot savart? $\endgroup$ – tuskiomi Dec 9 '18 at 0:11
  • $\begingroup$ see items 1,2,3,4 and 5 of my answer. You might consider to those as initial fixes, and compare with any other textbook example. $\endgroup$ – ZeroTheHero Dec 9 '18 at 0:11
  • $\begingroup$ i did.. you say there's no problem, it's posted right there. $\endgroup$ – tuskiomi Dec 9 '18 at 0:15
  • $\begingroup$ I don’t see you addressing any of the items above... It’s your question that was closed... 5 people agreed it was unclear: you can either fix it or not. $\endgroup$ – ZeroTheHero Dec 9 '18 at 0:18
  • $\begingroup$ 2: "how could one solve this using Biot-Savart law to end up with a function for the magnetic field in terms of a point and constants due to the current in the wire?" $\endgroup$ – tuskiomi Dec 9 '18 at 0:27
  • $\begingroup$ is that not satisfactory? why not? $\endgroup$ – tuskiomi Dec 9 '18 at 0:27
  • $\begingroup$ of course the field is a function of the current and of a point... you are calculating the field at one point due to a current... or do you think the field is uniform (which it is not)? Don’t take this the wrong way but find examples in other textbooks. What is $X$, $Y$, $Z$? $\endgroup$ – ZeroTheHero Dec 9 '18 at 0:29
  • $\begingroup$ it's the cartesian coordinates from the coordinates system? how do imake that clear? $\endgroup$ – tuskiomi Dec 9 '18 at 0:33
  • $\begingroup$ i’ve said enough. $\endgroup$ – ZeroTheHero Dec 9 '18 at 0:51
  • $\begingroup$ i agree. this isn't useful. $\endgroup$ – tuskiomi Dec 9 '18 at 0:55

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