The discussion centers on the calculation of resistance for a wire shaped in a semicircle. The correct formula for resistance is established as R = ρL/A, where ρ is resistivity, L is length, and A is cross-sectional area. Participants clarify the dimensions, noting that a radius of 25 mm refers to the wire's thickness rather than the semicircular shape. Confusion arises from the drawing, which inaccurately depicts a radius of 4500 mm for the cylindrical piece.
PREREQUISITESElectrical engineers, physics students, and anyone involved in calculating resistance in wire configurations will benefit from this discussion.
Thank you for correcting I will edit this, I want to write this actually. So, I don't know the second one is a semicircle or not. If that is I did correct. I don't have a question actually, mine is a confirmation.etotheipi said:
It's not drawn very well, but if they don't say otherwise, it looks close enough to a semicircle to consider it one, IMO.requied said:
thank you I had also thought soberkeman said:
I think the "25mm" is the radius of the wire itself, not the radius of the semicircle portion of the wire form. Yeah, that confused me pretty well also.kuruman said:
Ah, yes!berkeman said:
My native language is not English. See it from my angleberkeman said:
