All Questions
Tagged with copper resistance
6
questions
3
votes
2
answers
221
views
How to coat a thin electrical wire with carbon?
I am looking for glue that can be used under a bio-solution. The solution is a bacteria culture solution (LB, SB). I have a chamber filled with culture solution and I would like to extend an ...
- 77
2
votes
4
answers
2k
views
Calculate resistance of coil/inductor made of PCB traces
This is to be a NFC coil/inductor of 1.1uH according do ST's eDesignSuite tool, with 7 turns.
The drawing above follows these parameters:
ST's tool give inductance value as 1.1uH, but also I need ...
- 657
1
vote
3
answers
9k
views
How do I calculate the resistance of a copper bar?
I'm trying to calculate the resistance of a copper bar in a DC current, but I'm not sure how to do it. The only things I've seen online calculate the resistance of a wire and ask for its gauge, but a ...
- 111
0
votes
3
answers
2k
views
measuring resistivity of copper wire
I have a power supply, multimeter, and a copper wire with cross sectional area (A) A= 2.14*10^-3 m^2, Length L = 0.13 m and the resistivity of copper is p=1.7 × 10-8. The goal is to find the ...
- 1
2
votes
3
answers
9k
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How to calculate the resistance measured between probes in water
I have read already quiet a lot about the conductivity of water/ fluids but I cannot find a formula to calculate the resistance between probes in a fluid.
For example:
use-water-as-a-conductor-for-a-...
- 29
22
votes
4
answers
3k
views
Why does water short out PCBs? (i.e. Why doesn't electricity follow the path of least resistance?)
If copper is more conductive than water (at any reasonable PH), submerging copper electronic circuits in should have no effect, as the electricity should continue to follow the path of least ...
- 223