If current wasn’t a scalar quantity, (I.e., no direction or sign + -) then current would travel back 🔛 toward the amplifier every half cycle on each wire, no? 😦 So, the only things going back and forth on each wire are free electrons. Free the electrons!
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Current definitely is a signed quantity, like any flow. How could it alternate if it wasn't? Anyway its not up for debate, its the convention used in physics and engineering everywhere.
if it’s not up for debate why are you debating? 😬
Current doesn’t flow, it’s calculated, as I already stated at least twice. The only thing “flowing“ in an AC audio wire is free electrons. And “flowing” is not really the correct word even then since free electrons only move a millionth of an inch at one time, sometimes a little farther, depends on audio frequency. AND they move very slowly, wiggle back and forth, 🔛at a snail’s 🐌 pace of one meter per hour, which is a little misleading since they don’t actually ever move a distance of one meter.
Current doesn’t flow, it’s calculated, as I already stated at least twice. The only thing “flowing“ in an AC audio wire is free electrons. And “flowing” is not really the correct word even then since free electrons only move a millionth of an inch at one time, sometimes a little farther, depends on audio frequency. AND they move very slowly, wiggle back and forth, 🔛at a snail’s 🐌 pace of one meter per hour, which is a little misleading since they don’t actually ever move a distance of one meter.
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Current is the flow of electric charge. Yes current doesn't flow, it is a flow. The flow is precisely described as the rate of passage of electric charge through a given surface (normally the cross-section of the wire). Flow is independent of speed of movement, just the amount passing a given surface in a given time. An ampere is one coulomb per second. Or as an equation I = dQ/dt.
Someone needs to Google the difference between scalar and vector. Google is your friend.
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Wrong again.
You are desperately trying to push the concept that both wires can work independent from each other.
They can/do not.
You use the word "signal" in a nebulous way so you can twist its meaning as you wish.
Let's define it to get away from your rabbit-in-the-hat tricks.
Signal as studied in this thread is either Voltage which means a voltage difference between 2 wires or current "going" through one wire and "returning" through the other.
In BOTH cases TWO wires are involved and work SIMULTANEOUSLY.
Or voltage between conductors and simultaneous current through them which meets both conditions above.
Among other Physics horrors, you are trying to state non simultaneity, as in "signal goes through one wire and at some other moment it returns through the other" and similar nonsense.
https://www.oxfordlearnersdictionaries.com/definition/english/simultaneity
Scalars have 1 dimensional direction (aka sign), vectors have 2 or 3 dimensional direction. Values without any direction are magnitudes, like speed (magnitude of velocity) and rms values. The point is (DC) current is not by convention only a magnitude, otherwise why would multimeters have a minus sign in the DC current display?
Somewhere the idea that all scalars are magnitudes has crept in, but that's not the case, a scalar simply has no components, that's all, so can unambiguously multiply (scale) any vector or more complex type of quantity. Is this some confusion between AC current and instantaneous DC current maybe? AC currents are either expressed as magnitudes (rms) or as a complex number (or the equivalent 2-vector).
Somewhere the idea that all scalars are magnitudes has crept in, but that's not the case, a scalar simply has no components, that's all, so can unambiguously multiply (scale) any vector or more complex type of quantity. Is this some confusion between AC current and instantaneous DC current maybe? AC currents are either expressed as magnitudes (rms) or as a complex number (or the equivalent 2-vector).
WE are debating, you are trolling.
https://www.esafety.gov.au/young-people/trolling
From the Australian Government itself:
...
Trolling is when someone posts or comments online to ‘bait’ people, which means deliberately provoking an argument or emotional reaction. In some cases they say things they don’t even believe, just to cause drama.
...
Trolls often post under a fake name or anonymously, so they can say things without being held responsible. This can make them feel more powerful and less cautious than they would be if they were talking to someone ‘IRL’ or in person. This makes it difficult to identify who actually left the post or comment.
<<<
"If it looks like a duck, walks like a duck and quacks like a duck, then it just may be a duck. "
@JMFahey Thanks for a wonderful bunch of logical fallacies.
For example, you wrote,
“Among other Physics horrors, you are trying to state non simultaneity, as in "signal goes through one wire and at some other moment it returns through the other" and similar nonsense.”
Stop putting words in my mouth. I never said that or even implied it. Look, if you don’t understand what I mean just say you don't know.
I also was never pushing or implying the idea that two wires act independently from each other. you need to research what happens in an AC circuit. When the signal goes one way in one wire it simultaneously goes in the opposite direction in the other wire.
For example, you wrote,
“Among other Physics horrors, you are trying to state non simultaneity, as in "signal goes through one wire and at some other moment it returns through the other" and similar nonsense.”
Stop putting words in my mouth. I never said that or even implied it. Look, if you don’t understand what I mean just say you don't know.
I also was never pushing or implying the idea that two wires act independently from each other. you need to research what happens in an AC circuit. When the signal goes one way in one wire it simultaneously goes in the opposite direction in the other wire.
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If you think about it correctly, it's simply one wire. A single wire that goes from one terminal of the source, thru the load and over to the other terminal of the source.
From a battery (or generator) there is just one wire that goes from one terminal to the other. Somewhere along that wire it becomes a tungsten filament, or a motor winding or a voice coil or the heating element in a toaster. But it's still just one wire from one terminal of the source to the other.
From a battery (or generator) there is just one wire that goes from one terminal to the other. Somewhere along that wire it becomes a tungsten filament, or a motor winding or a voice coil or the heating element in a toaster. But it's still just one wire from one terminal of the source to the other.
This!
What are you talking about? Other people are making sense.
Yes!
The wire is often called a loop, if that helps. It's all the same wire.
A battery? A battery is DC. Audio circuits in audio systems are AC. This thread is getting loopy. 😛
https://dictionary.cambridge.org/dictionary/english/straight-from-the-horse-s-mouth 😉
YOU got baited into openly admitting your bad faith posts , with zero intention of learning anything. 🙂
Not much purpose on continuing this disgrace of a thread.
Excellent imitation of Juror 4 from 12 Angry Men. “But you can’t prove it!” 😡 It’s nice to see you’re dropping out of this thread as you don’t have an argument anyway.
It's a shame this thread deteriorated as it did. As a hobbyist who can read a schematic but struggles to understand exactly how circuits work, I clicked on this thread with interest. What a trainwreck.
On the other hand, the troll expresses some ideas that amateurs like me actually think have merit (that AC signals operate something like a phase splitter, for example) , and it's helpful to see more informed members dispel them. So the takeaway is "don't think like the troll."
On the other hand, the troll expresses some ideas that amateurs like me actually think have merit (that AC signals operate something like a phase splitter, for example) , and it's helpful to see more informed members dispel them. So the takeaway is "don't think like the troll."
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