Power Wire Length?
12-27-2003, 09:23 PM
#1
Power Wire Length?
Which would be more effective? A shorter postive wire to the esc or a shorter negative wire to the esc?
12-27-2003, 09:46 PM
#2
Yes.
12-27-2003, 09:52 PM
#3
the best would be to have both wires as short as you can.
12-27-2003, 10:59 PM
#4
I didn't say best, I said more effective, I'm not asking if shorter is better I'm asking which of the two would be more effecient for the esc by being shorter.
12-27-2003, 11:04 PM
#5
the neg wire flows the power so try to keep it short
12-27-2003, 11:22 PM
#6
pretty much all of the pro's who drive a losi, which requires that one wire will be MUCH longer than the other, have the negative as the shorter wire in their setups......very few have a short positive wire.
I would think though, that like connectors vs hardwiring arguements, that it would be an extremely small difference in performance....so small, that unless yer a professional driver, you wouldn't notice it on your best day.
Later EddieO
I would think though, that like connectors vs hardwiring arguements, that it would be an extremely small difference in performance....so small, that unless yer a professional driver, you wouldn't notice it on your best day.
Later EddieO
12-28-2003, 03:39 AM
#7
Tech Master
Re: Power Wire Length?
Originally posted by proudwinner
Which would be more effective? A shorter postive wire to the esc or a shorter negative wire to the esc?
Which would be more effective? A shorter postive wire to the esc or a shorter negative wire to the esc?
a shorter positive will be better as thats the input wire.
12-28-2003, 07:21 AM
#8
Re: Re: Power Wire Length?
Originally posted by trf racer
a shorter positive will be better as thats the input wire.
a shorter positive will be better as thats the input wire.
12-28-2003, 03:25 PM
#9
Regional Moderator
Actually now you are getting into which way current flows. Convential current flow is positive to negative, and I forget what the other is called, to many years out of school, but I think its electron flow is negative to positive. This point has been argueed for years among physicist and engineers. I think they regulate the negative wire since it's easier and or similer for the semiconductor designer (since semiconductor assume current flow is negative to positive).
Regardless of which, each wire should be as short as possible and it really doesn't make a difference which, since the flow must be a complete path. As to the results of making each wire as short as possible, I don't believe you can notice a difference of 1" to 12", the resistance is so small, a bad solder joint would give you greater resistance then the lenghth of wire.
I would concentrate on driving the car, it will make a heck of a lot more difference then the length of wire.
Anyway have fun, this topic could sure start a bunch of flame wars
Regardless of which, each wire should be as short as possible and it really doesn't make a difference which, since the flow must be a complete path. As to the results of making each wire as short as possible, I don't believe you can notice a difference of 1" to 12", the resistance is so small, a bad solder joint would give you greater resistance then the lenghth of wire.
I would concentrate on driving the car, it will make a heck of a lot more difference then the length of wire.
Anyway have fun, this topic could sure start a bunch of flame wars
12-28-2003, 03:58 PM
#10
good point
12-29-2003, 05:08 AM
#11
Tech Master
i cant imagine current flows negative to postive.
i was taught and had a great understanding that current flows positive to negative.
i was taught and had a great understanding that current flows positive to negative.
12-29-2003, 05:13 AM
#12
Tech Master
it flows neigther way.
look at this website
look at this website
12-29-2003, 05:15 AM
#13
Tech Master
WHICH WAY DOES THE "ELECTRICITY" REALLY FLOW?
(c)1996 William Beaty
Electronics teachers and authors of textbooks are often chided for passing on an "error" to their students. Teachers promote idea that electric current is a flow of positive particles in one direction, when it really is a flow of negative electrons going the other way.
In fact, the chiders are themselves mistaken. They're laboring under the misconception that "electricity" is invariably made of negatively-charged particles called electrons. This is wrong. It also leads people to wrongly conclude that electric currents are really a flow of negative particles. Actually, in many situations, electric currents can really be a flow of positive particles. In other situations the flows are negative particles. And sometimes they're both positive and negative flowing at once, but in opposite directions. The true direction of the flowing particles depends on the type of conductor.
Electricity is more than just electrons
"Electricity" is not made of electrons (or to be more specific, Electric Charge, which is sometimes called "Quantity of Electricity," is not made of electrons.) Charge actually comes in two varieties: positive and negative particles. In the everyday world of electronics, these particles are the electrons and protons supplied by atoms in conductors. Physicists may deal with muons, positrons, antiprotons, etc., but at present the "electricity" in electrical devices is limited to protons and electrons.
Because the negative particles carry a name that SOUNDS like "electricity," people unfortunately start thinking that the electrons ARE the electricity, and they think that that protons (having a much less electrical name?) are not electrical. Some text and reference books even state this outright, saying that electricity is composed of electrons. In reality the electrons and protons carry electric charges of equal strength. If electrons are "electricity", then protons are "electricity" too.
Now everyone will rightly tell me that the protons within wires cannot flow, while the electrons can. Yes, this is true... for non-liquid metals. Metals are composed of positively charged atoms immersed in a sea of movable electrons. When an electric current is created within a copper wire, the "electron sea" moves forward, but the protons within the positive atoms of copper do not.
However, SOLID METALS ARE NOT THE ONLY CONDUCTORS, and in many other substances the positive atoms *do* move, and they *do* participate in the electric current. These various non-electron conductors are nothing exotic. They are all around us, as close to us as they can possibly be.
Non-electron Charge-flow
For example, if you were to poke your fingers into the anode/flyback section inside a television set, you would suffer a dangerous or lethal electric shock. During your painful experience there obviously was a considerable current directed through your body. However, NO ELECTRONS FLOWED THROUGH YOUR BODY AT ALL. The electric charges in a human body are entirely composed of charged atoms. During your electrocution, it was these atoms which flowed along as an electric current. The electric current was a flow of positive sodium and potassium atoms, negative chlorine, and numerous other more complex positive and negative molecules. During the electric current, the positive atoms flowed in one direction, while the negative atoms simultaneously flowed in the other. Imagine the flows as being like crowds of of tiny moving dots, with half the dots going in one direction and half in the other. The crowds of little dots move through each other without any dots colliding.
So, in this situation, which direction did the electric current REALLY have? Do we follow the negative particles and ignore the positive ones? Or vice versa?
Batteries are another example of non-electron or "ionic" conductors. When you connect a lightbulb to a battery, you form a complete circuit, and the path of the flowing charge is through the inside of the battery, as well as through the light bulb filament. Battery electrolyte is very conductive. Down inside the battery, within the wet chemicals between the plates, the amperes of flashlight current is a flow of both positive and negative atoms. There is a powerful flow of electric charge going through the battery, yet no individual electrons flow through the battery at all. While it's between the two plates of the battery, what is the real direction of the electric current? Not right to left, not left to right, but in both directions at once. About half of the charge-flow is composed of positive atoms, and the remaining portion is composed of negative atoms flowing backwards. Outside the battery in the metal wires the real particle flow is from negative to positive. But inside the battery's wet electrolyte, the charge-flow goes in two opposite directions at the same time.
Two-way currents are common
There are many other places where this kind of positive/negative charge flow can be found. In the following list of devices and materials, electric charges are a combination of movable positive and negative particles. During an electric current, both varieties of particles are flowing past each other in opposite directions.
(c)1996 William Beaty
Electronics teachers and authors of textbooks are often chided for passing on an "error" to their students. Teachers promote idea that electric current is a flow of positive particles in one direction, when it really is a flow of negative electrons going the other way.
In fact, the chiders are themselves mistaken. They're laboring under the misconception that "electricity" is invariably made of negatively-charged particles called electrons. This is wrong. It also leads people to wrongly conclude that electric currents are really a flow of negative particles. Actually, in many situations, electric currents can really be a flow of positive particles. In other situations the flows are negative particles. And sometimes they're both positive and negative flowing at once, but in opposite directions. The true direction of the flowing particles depends on the type of conductor.
Electricity is more than just electrons
"Electricity" is not made of electrons (or to be more specific, Electric Charge, which is sometimes called "Quantity of Electricity," is not made of electrons.) Charge actually comes in two varieties: positive and negative particles. In the everyday world of electronics, these particles are the electrons and protons supplied by atoms in conductors. Physicists may deal with muons, positrons, antiprotons, etc., but at present the "electricity" in electrical devices is limited to protons and electrons.
Because the negative particles carry a name that SOUNDS like "electricity," people unfortunately start thinking that the electrons ARE the electricity, and they think that that protons (having a much less electrical name?) are not electrical. Some text and reference books even state this outright, saying that electricity is composed of electrons. In reality the electrons and protons carry electric charges of equal strength. If electrons are "electricity", then protons are "electricity" too.
Now everyone will rightly tell me that the protons within wires cannot flow, while the electrons can. Yes, this is true... for non-liquid metals. Metals are composed of positively charged atoms immersed in a sea of movable electrons. When an electric current is created within a copper wire, the "electron sea" moves forward, but the protons within the positive atoms of copper do not.
However, SOLID METALS ARE NOT THE ONLY CONDUCTORS, and in many other substances the positive atoms *do* move, and they *do* participate in the electric current. These various non-electron conductors are nothing exotic. They are all around us, as close to us as they can possibly be.
Non-electron Charge-flow
For example, if you were to poke your fingers into the anode/flyback section inside a television set, you would suffer a dangerous or lethal electric shock. During your painful experience there obviously was a considerable current directed through your body. However, NO ELECTRONS FLOWED THROUGH YOUR BODY AT ALL. The electric charges in a human body are entirely composed of charged atoms. During your electrocution, it was these atoms which flowed along as an electric current. The electric current was a flow of positive sodium and potassium atoms, negative chlorine, and numerous other more complex positive and negative molecules. During the electric current, the positive atoms flowed in one direction, while the negative atoms simultaneously flowed in the other. Imagine the flows as being like crowds of of tiny moving dots, with half the dots going in one direction and half in the other. The crowds of little dots move through each other without any dots colliding.
So, in this situation, which direction did the electric current REALLY have? Do we follow the negative particles and ignore the positive ones? Or vice versa?
Batteries are another example of non-electron or "ionic" conductors. When you connect a lightbulb to a battery, you form a complete circuit, and the path of the flowing charge is through the inside of the battery, as well as through the light bulb filament. Battery electrolyte is very conductive. Down inside the battery, within the wet chemicals between the plates, the amperes of flashlight current is a flow of both positive and negative atoms. There is a powerful flow of electric charge going through the battery, yet no individual electrons flow through the battery at all. While it's between the two plates of the battery, what is the real direction of the electric current? Not right to left, not left to right, but in both directions at once. About half of the charge-flow is composed of positive atoms, and the remaining portion is composed of negative atoms flowing backwards. Outside the battery in the metal wires the real particle flow is from negative to positive. But inside the battery's wet electrolyte, the charge-flow goes in two opposite directions at the same time.
Two-way currents are common
There are many other places where this kind of positive/negative charge flow can be found. In the following list of devices and materials, electric charges are a combination of movable positive and negative particles. During an electric current, both varieties of particles are flowing past each other in opposite directions.
12-29-2003, 07:36 AM
#14
blah blah blah look at your car I have a tC3 with the battery positive in the back I run 1 red wire + from the speedo to the motor to the battery. now if power in these speedo's flowed positive to neg the your motor would run flat out all the time. look at the car and think about it
12-29-2003, 08:02 AM
#15
Originally posted by davepull
blah blah blah look at your car I have a tC3 with the battery positive in the back I run 1 red wire + from the speedo to the motor to the battery. now if power in these speedo's flowed positive to neg the your motor would run flat out all the time. look at the car and think about it
blah blah blah look at your car I have a tC3 with the battery positive in the back I run 1 red wire + from the speedo to the motor to the battery. now if power in these speedo's flowed positive to neg the your motor would run flat out all the time. look at the car and think about it