A length of conductive material used as a conductor of electricity.

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2
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3answers
2k views

Determining maximum current through 18 gauge wire in robot arm

For a robotics application, I'd like to power some external electronics and sensors off the logic circuit in a robot arm. The components are a computer (19V, 65W => 5A), 2 cameras (1.2A), 1 light ...
0
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2answers
2k views

Formula between wire size and current [closed]

Is there a mathematical formula between wire size, current, temperature and wire type(Or resistance)?
3
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3answers
985 views

Can I use staples to hold down electric wire?

I'm building a very small game for my brother. I am moving it from the original, ready-printed motherboard to a sheet of metal. The metal doesn't have holes punched in it, and I need a different way ...
1
vote
1answer
176 views

How significant are hysteresis losses in iron wires with RF currents?

I understand that iron isn't a great choice of conductor for RF currents, as a wire dipole antenna for example. I understand there are several reasons, but I'm wondering specifically about one: ...
9
votes
3answers
2k views

Are there rules for selecting wire gauge for single-pulse applications?

I'm trying to size wire for UL 508a panels. I have UL's wire gauge requirements, but those requirements are for continuous use. The device I'm designing will only run for two seconds, with minutes or ...
4
votes
5answers
4k views

Any tricks to attaching a wire or pin to a testpoint?

More and more often, I find myself needing to tear apart a device to seek out and connect to serial pads. These pads typically give me access to the underlying operating system for research or ...
0
votes
1answer
121 views

STM8L discovery board, wires for the breadboard

I don't know if it is the right place to ask, but still I have a STM8L discovery dev board - http://www.st.com/web/catalog/tools/FM116/SC959/SS1673/PF250636 which has very small square male-type ...
2
votes
2answers
4k views

Can I use lower gauge wire for short runs of longer high amp circuits?

This question is probably more of a "please explain whatever concept I'm missing." But I'll start with my specific question. I'm building an electric brewery and am using a 5500W 240V (23A) heating ...
1
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2answers
163 views

Crimp connectors making process review

I'm actually working on a project with several "little" modules. They are all connected to the PSU and the MCU. So I've design interface for each, so I can easily wire everything together. For that ...
0
votes
1answer
508 views

Unused slots in the stepper Motor

The motor I am talking about has six wire slots of which two are unused and wires coming from the motor are restricted to four (4 to 4 jumper connecting wires are there to connect the motor ).So why ...
0
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1answer
255 views

Connecting phone using copper power wires

I want to install a video door phone (intercom) in my home, for this I have done a pre-wiring of 4 individual copper wires (normally used for home electricity) and the total length of wires is about ...
1
vote
2answers
368 views

Isolate wires soldered on PCB

I'm soldering some cables on a PCB. They are are stranded, so I've first apply a bit of soldering on them and then solder them on my pcb. The problem is, there's on some a bit of exposed copper on ...
1
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0answers
175 views

Crimper for Smaller Connectors [closed]

I need to grow past the 0.1in black headers for a current project. They're just too big. But I don't know of anything suitable as the next step. Low current carrying ability is OK (2A ideal, 1A ...
-1
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2answers
289 views

Wire resistivity

Could you please shed some light on wire resistivity calculations for me.... for example if you have a wire length at 100m with a diameter of 10mm measured at 0.25 ohms.(what material is 0.25?? I can ...
1
vote
2answers
630 views

How do coaxial cables carry information that a TV can intercept and display?

Is there a specification for this? Like, say, at the backside of a cable box there exists a singular coaxial cable that is meant to be plugged directly in the back of the TV. The TV must be set to a ...
4
votes
4answers
2k views

Stiff, straight wire similar to LED legs

I'm planning on building another LED cube. I've built ones before using tinned 0.6mm copper wire which looked OK, however the wire bent easily and was never quite straight in the first place. I spent ...
4
votes
2answers
248 views

How do you deal with worn wires?

Repairing a Macbook 4.1 (2008 model), I found something odd - the cables are breaking: The left side has a break in one cable's shielding (the wifi antenna most likely, as it's connected to a ...
0
votes
2answers
84 views

Eliminating induction between wires

How is it ensured that (computer) hardware (such as motherboards or processors themselves) does not suffer from from wrong signals due magnetic induction between wires?
8
votes
3answers
3k views

Why are high impedance circuits more sensitive to noise?

Why are high impedance circuits being more sensitive to the noise? They have less current flowing through them, but how is that related to noise, since external noise becomes voltage on the wires, and ...
0
votes
4answers
820 views

What is a good way to solder small transistor to wire?

I have a really small transistor with very little space between its pins. I want to solder resistor to base and wires to collector&emitter. So I am worried about transistor pins come in contact by ...
0
votes
2answers
401 views

Choosing the correct wire

I'm making a protoboard that will include three small sections of wire, around an inch long each, to go: power source -> relay -> out power source -> out When the relay is on the wires will be ...
7
votes
1answer
518 views

What PCB wire termination should I use for high-vibration environments?

I'm designing a system for a high-vibration application. I need to land wires on circuit boards. Someone suggested that I use a Wago cage clamp, and that there might be similar things from other ...
1
vote
1answer
244 views

Detect the shape of a wire

Is there any electrical or other physical property that can tell me the shape of a wire? I mean, if I inserted a wire into a space (of the same thickness as the wire assume), this property should ...
3
votes
2answers
249 views

Hobbyist Leaded Solder

I'm not asking about the safety of which solder, I'm asking about which type of solder would be best for my purposes I'm a novice electronic hobbyist and I just want to know what composition of ...
3
votes
1answer
807 views

Joining fine wires

I've got a postage scale, on which that the 9V battery connector has fallen off, I bought a new one online for £1 (as below), the new one already has cables coming out of it and the postage scale has ...
3
votes
1answer
900 views

Do the very thin wires of headphones have a name?

Do the very thin wires of headphones have a name? by headphone wires I mean the usually green, red and twisted ground cables, about 0.1 mm thick.
2
votes
1answer
83 views

Readily available or commonly used transparent conductors?

Are they any transparent conductors (inks paints or otherwise) that are readily available to hobbyists? (i.e. cost effective and purchasable online)?
5
votes
1answer
2k views

Is silver actually used for coating copper wire?

I heard stranded copper wire would be silver-coated for better conductivity at high frequencies (skin effect). But silver is at least an order of magnitude more expensive than copper, yet only has 5% ...
0
votes
1answer
155 views

Which wires goes to appliance's ground and on/off switch?

I have an electric hair trimmer whose power kept getting interrupted. I knew the problem was in a particular spot in the cord because when it would bend there, the trimmer would lose power. I cut ...
-2
votes
1answer
460 views

Does there exist a switch with wire already attached to it? [closed]

Maybe it's a silly question, but I lose a great amount of time to solder wire to an on-on 6 row (DPSP) switch. I would like to know if there is a switch sold somewhere (cheap) with wire already ...
0
votes
2answers
198 views

Is it possible for an energy source of 4.7mW to heat a Nichrome wire to 800°F [427°C]?

I am trying to understand if it will be possible for an energy source with an output of 4.7mW at 47% efficiency to power a 35AWG Nichrome wire (think dime sized coil) to 700-800 degrees F. If it is ...
1
vote
2answers
118 views

DD50 equivalent?

I've been looking around and can't find a definitive answer, so I figured I'd ask here. I'm completely new to electronics. This past Fourth of July I made a simple firework launcher using DB15 as the ...
4
votes
2answers
409 views

Does solid/multi-stranded/Litz wire make a difference in binary serial output?

I'm using two shift registers to control 16 digital outputs using only 3 pins on my microcontroller. The parallel outputs carry <= 20 mA DC, their sole purpose is to power LEDs. My microcontroller ...
1
vote
0answers
92 views

Inferring number of strands from AWG -> mm

If there is "16AWG" 1.34mm CSA wire, is it possible to figure out the strand count? I am thinking it might be possible as AWG is about overall diameter. So 16AWG should have a diameter of 1.291, but ...
1
vote
1answer
188 views

Physical Wire Size Confusion

I'm going to get this wire for a simple project, and I need to get some heat shrink for it. My problem is that I can't figure out the diameter of the individual insulated wires. There are going to ...
0
votes
2answers
714 views

How much power dissipated in a wire?

i"m designing a long metal1 wire. The parasitic capacitors and resistors are callculated. I want to have an ac voltage at the output end of the line ( 0 - 3.3 V ) at 1GHz. How can i calculate the ...
2
votes
1answer
344 views

How to connect to 30 awg Nichrome wire to 28 awg wire?

I'm looking for a quick way to connect my 30 awg Nichrome wire to some 28 awg stranded wire and have tried an inline splice and crimped-on receptacles. For my project I'll potentially be making lots ...
8
votes
4answers
29k views

Physically determine unknown wire's gauge

Is there any way to easily and accurately determine the gauge of stranded wire by measuring it? I know you can pretty easily determine the gauge of solid-core wire with just a pair of calipers by ...
0
votes
1answer
98 views

Should I use Magnet Wire as a conductor in this experiment?

I need to run a few wires from a HMC5883L compass sensor to a micro-controller to process the data. Can I use magnet wire to carry the signals from the sensor to the micro-controller or would the ...
2
votes
2answers
1k views

What is the welding technique heater manufacturers use to connect nichrome wire to copper terminals

I have made hundreds of very reliable nichrome to copper connections using a torch and silver solder (brazing). Due to the high cost of silver I would like to investigate the welding process that ...
7
votes
2answers
2k views

Can you send data usefully over one wire, literally one wire?

It is possible to design networking systems that only use two wires: one for data and one for a common ground. Examples include 1-wire and Pin&Play. These are called single wire systems because ...
2
votes
3answers
3k views

Strange I2C behavior: sometime it works, some time it doesn't

I am using Arduino Ethernet with PoE and Arduino Uno boards. In recent days I implemented a working I2C bus by using the Wire library and all it seemed almost to ...
11
votes
2answers
8k views

Will crimped wire or soldered wire carry a current better?

I am running a 160amp DC current through a 1/0awg wire. Will the connection be more reliable with crimped connections, soldered connections, or screw terminals? I have looked online and it seems ...
-1
votes
2answers
1k views

How do I calculate the voltage needed to heat up a wire to a certain temperature?

The wire I am using is standard temp. nitinol wire which needs to be heated up to 45 degrees Celsius in order to be effective (move). What voltage do I need to achieve this?
2
votes
2answers
979 views

How can I power the blue LEDs separetely on this aquarium light?

I have a Beamswork LED aquarium light like this. It has a 3 way switch: All LEDs off Blue LEDs on only White AND blue LEDs on It has a single mains power plug. What I want to do is make it have ...
-1
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3answers
896 views

Wires resistant to frequent bending for use in headphones

I'm tired of continuously fixing wire on headphones. Can you recommend good wire that resistant to the frequent bending and thus will be last ultimate replacement as headphone wire ?
2
votes
3answers
824 views

Coaxial cable theory

Well I was learning transmission but I got a bit confused when I came to coaxial cables transmission at radio frequency. What I am lost is how the waves are propagating in the cable, I was thinking ...
2
votes
3answers
2k views

Checking materials (cheapest possible) to be used for a solar dark-detecting LED light bulb circuit

I want to make this circuit, which includes a joule thief: It's for a solar dark-detecting LED light; and I'm trying to follow this guide: ...
3
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1answer
233 views

Which tool do I have to use for wire connector?

I want to make the wire connector as the screen below. What tool do I need to use and how can I make it?
2
votes
1answer
240 views

Limitation of baud due to propagation of voltage over distance

I need to make sure I have my facts straight here; the math works but I may be missing something: In a 100BaseTX network over Cat-5 copper, each party has a circuit (one twisted pair) on which they ...