Need help with physics (resistance)?
Hello,
It should read 1587.3 ohms, but I always get something different. Can someone explain this to me?
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1.114,0846 Ω would be the right solution!
When Diameter of 4 mm, the Cross-section
The specific resistance refers to a line of 1 meter length with a cross-section of 1 mm2.
The longer the line, the greater the resistance.
The greater the cross section, the lower the resistance.
1587.3 Ω are when the line has a diameter of 3.351 mm (cross section 8.82 mm2) or if the spez. Resistance is 0.039893 Ω·mm2/m. Someone’s going to be wrong!
Yeah, that was my teacher. He may sometimes make mistakes
And that’s good. Errors are human and you learn to question the results.
I also come to something else:
Yeah, your path sounds plausible. I don’t know how to get to 1587,3 ohm
I did. If one starts off from the return path (current lines usually have at least two wires), corresponding to twice. But it is not clear here whether it should be taken into account.
The question is, ” a Aluminium wire.
Oh, yes, that makes sense
I’ve been thinking about it.