Questions tagged [copper]
The Element Cu known for its electrical and thermal conductivity, both of which are exploited in EE. THis material is typically what is used in PCB's for the traces and also modern CMOS processes have Cu layers in them due to it's superior conductivity. You also see copper in heat sinks to carry heat away from components.
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Determine copper thicknesses for multi layer PCB
When deciding PCB stack-up generally accept the manufacturer suggestions. Especially they calculate the track impedance more accurate. For my last design I checked the guideliness for the FPGA (...
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Crimp vs stainless steel intermediary for copper and nichrome connections in a heating element. Any difference in speed of heating?
I'm designing an electric furnace to melt aluminium. I'm planning to use the heating element from an electric oven.
I'm aware that the melting temp for aluminium is lower than copper BUT I don't want ...
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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 ...
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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 ...
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Why coated copper carry more current than bare bar?
From Rittal Technical Information Rated currents of busbars E-Cu (DIN 43 671) :
In the table, it says bare bar carry less current than coated bar. What is the reason of that ? and what kind of coated ...
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Calculation of Current Capability of Copper Bus Bar
If we look the table 20x10 copper bus bar with 199 mm2 is able to carry 427A (bare bar)according to table.So we ended up with 2.14572864322 A/mm2. However, when we 30x10 mm2 copper bus bar with 299 ...
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What is the total charge Q of 1 m³ of copper?
I was wondering if I can calculate the total charge Q of 1 m3 of copper, see my calculation in the picture below. Is this correct?
The correct solution (thanks to the community in the comments below):...
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How can I insulate cables using a copper braid too thin to sheathe them?
I have high-voltage SHV cables that I need to shield using a copper braid. I am using sensitive electronics and these cables appear to be a source of noise.
The only copper braid that I have available,...
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Reference source for copper conductivity vs. temperature
I am looking for a curve for copper conductivity vs. temperature over the -55°C to +180°C range (covers std. ranges of semiconductors plus NEMA class H insulation in the case of magnetics / motors) ...
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Copper wire for high frequency converters
Designers use Litz copper wire for high frequency windings. That rapidly increases the diameter of wire needed and decreases the stacking factor.
Should’t it be possible to make a copper wire with ...
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How to reset the copper after removing vias in Altium Designer
How do I reset the copper plane after removing vias and traces?
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Calculation of the cross section of the busbar in the switchgear
To calculate the cross-sectional area of the copper busbar, it is necessary to calculate the permissible current of the busbar.
One of the correction coefficients that must be multiplied in this ...
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Calculating electromagnet – magnetism vs heat
Im making an electromagnet that will be more or less permanently turned on so I need to avoid heating problems. I have studied this a bit and came to the conclusion that:
the lower the gauge (AWG) (...
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Can an insulated copper wire oxidize down its entire length?
I was doing some electrical wiring on a trailer today and was surprised to see black instead of shiny copper when I cut and stripped a section from the middle of a long section of uninterrupted wire. ...
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How are copper busbars connected to each other?
How are busbars connected to each other? A quick google image search makes it obvious that it is bolts.
https://i.ibb.co/8D05Sk5/power-dist-jpg.jpeg
The specifics of the bolts is what I am most ...
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