Defining the electric current.

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SUMMARY

The discussion centers on the definition of electric current, specifically addressing the dimensional analysis involving the variables A (area), n, and ΔL. Participants clarify that A cannot be treated as a dimensionless quantity and emphasize the importance of correctly defining ΔL in the context of electric current. The conversation highlights the need for precise terminology and understanding of physical dimensions in electrical engineering concepts.

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AS28
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Hello.
I have attached a file containing a detailed question regarding the definition of the electric current. I'll be glad if someone can help me clarify this issue.
Thanks :redface:
 

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A is an area, so it can't be 1 divided by a length. You seem to be forgetting n and the fact that it isn't dimensionless.
 
willem2 said:
A is an area, so it can't be 1 divided by a length. You seem to be forgetting n and the fact that it isn't dimensionless.

Well, the problem is that I have read the summary I made for one of the lectures discussing the Hertzian dipole antenna, and [tex]\Delta L[/tex] just appeared the way I wrote it in the attached file. In fact, I clearly noticed what you had written before posting this message/thread, but I still try to figure out if I can define n or [tex]\Delta L[/tex] in different dimensions to get a correct expression for the electric current (I simply forgot to write some details down during the lecture and therefore now I try to understand what the lecturer meant..).
So what else could [tex]\Delta L[/tex] represent if I rule out the possibility of a length element?
thanks :confused:
 

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