Electricity question

[TheLonelyPhoenix]

Originally posted by: Eli

Originally posted by: element

Originally posted by: JohnCU

Originally posted by: element

Originally posted by: Stealth1024

Originally posted by: Pepsi90919
well for one thing you can't read AC and DC at the same time... among lots of other things

the neutral in a wall socket is not AC or DC this has nothing to do with it...

it most certainly is AC when current is flowing through it

Ground is ground, it's 0, it doesn't alternate between +0 and -0.

EDIT: If it didn't stay 0, you couldn't use node-voltage to analyze the circuit...

AC doesn't alternate? now I've heard everything! For god's sakes please tell me you at least know what the A in AC stands for!

AC alternates between 120 and -120, not +0 and -0, whatever that means. You know that just means approaches 0 without actually getting there right? that's pretty much 0 when you're dealing with hundreds of volts. Man you have a lot to learn. And will the numbnuts that haven't a clue try asking questions instead of providing horse crap? k thx.

Actually, AC alternates between more like 160 and -160, but meh.

170 V and -170 V. In the U.S. and a few other countries, anyway.

Its funny to watch people keep correcting each other with the wrong answers. This thread makes me feel good about myself.

 

[Pepsi90919]

Originally posted by: Eli

Originally posted by: element

Originally posted by: JohnCU

Originally posted by: element

Originally posted by: Stealth1024

Originally posted by: Pepsi90919
well for one thing you can't read AC and DC at the same time... among lots of other things

the neutral in a wall socket is not AC or DC this has nothing to do with it...

it most certainly is AC when current is flowing through it

Ground is ground, it's 0, it doesn't alternate between +0 and -0.

EDIT: If it didn't stay 0, you couldn't use node-voltage to analyze the circuit...

AC doesn't alternate? now I've heard everything! For god's sakes please tell me you at least know what the A in AC stands for!

AC alternates between 120 and -120, not +0 and -0, whatever that means. You know that just means approaches 0 without actually getting there right? that's pretty much 0 when you're dealing with hundreds of volts. Man you have a lot to learn. And will the numbnuts that haven't a clue try asking questions instead of providing horse crap? k thx.

Actually, AC alternates between more like 160 and -160, but meh.

meh, p-p or RMS, kind of irrelevant compared to the flamefest in this thread

 

[MrDudeMan]

Actually, no, you're full of sh!t too, hotshot.

I could waste my time trying to explain why, but its obvious you're an elitist prick and wouldn't listen anyway. After all, you didn't even read this thread before you went for the post button.

i read the whole thing. nice try though.

id be willing to listen if you were willing to explain, so go ahead and try it out. i even admitted in my post i could be wrong. you sure are blowing a lot of smoke without having any reading comprehension.

 

[RaynorWolfcastle]

Originally posted by: Eli
Sheesh. So what is wrong with the "no circuit" answer?

I suppose his question is actually "Why can't we measure the potential voltage without completing the circuit?"?

Ummm... it's completely wrong? Completing the circuit has absolutely nothing to do with the potential. Not only that, but in some cases it's possible to measure potential between two points without ever "completing the circuit".

The potential between two points is completely independant of any circuit you want to attribute to it. It is a function of E-Fields present and the material properties of the points between them. How you measure these properties is entirely independant of the presence of this potential.

If you really want a thorough explanation as to what electric potential is ans why you won't measure anything, please feel free to pick up a book about electromagnetic fields.

 

[Eli]

Originally posted by: TheLonelyPhoenix

Originally posted by: Eli

Originally posted by: element

Originally posted by: JohnCU

Originally posted by: element

Originally posted by: Stealth1024

Originally posted by: Pepsi90919
well for one thing you can't read AC and DC at the same time... among lots of other things

the neutral in a wall socket is not AC or DC this has nothing to do with it...

it most certainly is AC when current is flowing through it

Ground is ground, it's 0, it doesn't alternate between +0 and -0.

EDIT: If it didn't stay 0, you couldn't use node-voltage to analyze the circuit...

AC doesn't alternate? now I've heard everything! For god's sakes please tell me you at least know what the A in AC stands for!

AC alternates between 120 and -120, not +0 and -0, whatever that means. You know that just means approaches 0 without actually getting there right? that's pretty much 0 when you're dealing with hundreds of volts. Man you have a lot to learn. And will the numbnuts that haven't a clue try asking questions instead of providing horse crap? k thx.

Actually, AC alternates between more like 160 and -160, but meh.

170 V and -170 V. In the U.S. and a few other countries, anyway.

Its funny to watch people keep correcting each other with the wrong answers. This thread makes me feel good about myself.

It depends on your point of reference, whether it's 110, 115 or 120V.

I wasn't quite sure, so I googled.. and got a range from 160 to 170, yes.

 

[Colt45]

Originally posted by: TheLonelyPhoenix

Originally posted by: Eli

Originally posted by: element

Originally posted by: JohnCU

Originally posted by: element

Originally posted by: Stealth1024

Originally posted by: Pepsi90919
well for one thing you can't read AC and DC at the same time... among lots of other things

the neutral in a wall socket is not AC or DC this has nothing to do with it...

it most certainly is AC when current is flowing through it

Ground is ground, it's 0, it doesn't alternate between +0 and -0.

EDIT: If it didn't stay 0, you couldn't use node-voltage to analyze the circuit...

AC doesn't alternate? now I've heard everything! For god's sakes please tell me you at least know what the A in AC stands for!

AC alternates between 120 and -120, not +0 and -0, whatever that means. You know that just means approaches 0 without actually getting there right? that's pretty much 0 when you're dealing with hundreds of volts. Man you have a lot to learn. And will the numbnuts that haven't a clue try asking questions instead of providing horse crap? k thx.

Actually, AC alternates between more like 160 and -160, but meh.

170 V and -170 V. In the U.S. and a few other countries, anyway.

Its funny to watch people keep correcting each other with the wrong answers. This thread makes me feel good about myself.

Depends on what the power co is giving you.. 115 117 120 somewhere in between

 

[MrDudeMan]

Originally posted by: RaynorWolfcastle

Originally posted by: Eli
Sheesh. So what is wrong with the "no circuit" answer?

I suppose his question is actually "Why can't we measure the potential voltage without completing the circuit?"?

Ummm... it's completely wrong? Completing the circuit has absolutely nothing to do with the potential. Not only that, but in some cases it's possible to measure potential between two points without ever "completing the circuit".

The potential between two points is completely independant of any circuit you want to attribute to it. It is a function of E-Fields present and the material properties of the points between them. How you measure these properties is entirely independant of the presence of this potential.

If you really want a thorough explanation as to what electric potential is ans why you won't measure anything, please feel free to pick up a book about electromagnetic fields.

ok now that i did not know. interesting...i have a book on e-mag fields but i dont really understand any of it yet. maybe ill flip through and try to make some sense out of this...

 

[JohnCU]

See, not a stupid question. I don't take electromagnetics until next year...ECE 380 I think.

 

[cressida]

just draw a block diagram and it will show your circuit is incomplete

 

[JohnCU]

Originally posted by: cressida
just draw a block diagram and it will show your circuit is incomplete

Okay, wrong, read the whole thread.

 

[TheLonelyPhoenix]

Originally posted by: Bigsm00th
id be willing to listen if you were willing to explain, so go ahead and try it out. i even admitted in my post i could be wrong. you sure are blowing a lot of smoke without having any reading comprehension.

You were quick on the edit button in that post, I see. Post opinion first and read later?

If you read through this whole thread and don't understand that current does not have to flow to measure differences in potential, or think that the "state" of an electron has anything at all to do with answering this question, then I honestly don't know what else to say to you besides "read it again".

 

[Heisenberg]

Originally posted by: JohnCU
See, not a stupid question. I don't take electromagnetics until next year...ECE 380 I think.

Hehe, have fun with that. Electrodynamics was one of my hardest undergraduate courses.

 

[Eli]

Originally posted by: RaynorWolfcastle

Originally posted by: Eli
Sheesh. So what is wrong with the "no circuit" answer?

I suppose his question is actually "Why can't we measure the potential voltage without completing the circuit?"?

Ummm... it's completely wrong? Completing the circuit has absolutely nothing to do with the potential. Not only that, but in some cases it's possible to measure potential between two points without ever "completing the circuit".

The potential between two points is completely independant of any circuit you want to attribute to it. It is a function of E-Fields present and the material properties of the points between them. How you measure these properties is entirely independant of the presence of this potential.

If you really want a thorough explanation as to what electric potential is ans why you won't measure anything, please feel free to pick up a book about electromagnetic fields.

you know, he's probably laughing his ass off about now..

He had to know this would happen.. his OP is about as vague as it gets.

Isn't there an explination you can give me, or at least a site you can point me to? Not that
I'm against reading paper, but I don't want to go to the library right now.

Isn't that his question though? Why can't we measure it? Are you saying that we CAN measure it, or what? I'm still confused.

A "book about electromagnetics" huh? What level book are we talking about here? I've always been into electromagnetics, so I would like to think I understand more than the average person.

 

[TheLonelyPhoenix]

Originally posted by: cressida
just draw a block diagram and it will show your circuit is incomplete

God DAMN it! Did everyone forget how to read at the same time?

 

[Pepsi90919]

Originally posted by: TheLonelyPhoenix

Originally posted by: cressida
just draw a block diagram and it will show your circuit is incomplete

God DAMN it! Did everyone forget how to read at the same time?

just the OP

 

[91TTZ]

Originally posted by: JohnCU
Let's say you have a voltmeter, and have the positive test lead touching the positive end of a battery, and the negative plugged into the neutral socket of a wall outlet. Why does it not read the voltage of the battery? Voltage is relative from point to point, and the wall should be at 0, and the battery should be 1.5 V, so it should read 1.5 V shouldn it?

Because you won't be completing any circuit. You're sticking a probe into part of 2 completely different, isolated circuits, so of course you're not going to get a reading.

Also, if you don't understand this you really shouldn't be sticking things into wall outlets.

 

[JohnCU]

Originally posted by: Pepsi90919

Originally posted by: TheLonelyPhoenix

Originally posted by: cressida
just draw a block diagram and it will show your circuit is incomplete

God DAMN it! Did everyone forget how to read at the same time?

just the OP

You just got owned by thinking the ground alternates, so go away please.

 

[Heisenberg]

Originally posted by: Eli
you know, he's probably laughing his ass off about now..

He had to know this would happen.. his OP is about as vague as it gets.

Isn't there an explination you can give me, or at least a site you can point me to? Not that
I'm against reading paper, but I don't want to go to the library right now.

Isn't that his question though? Why can't we measure it? Are you saying that we CAN measure it, or what? I'm still confused.

A "book about electromagnetics" huh? What level book are we talking about here? I've always been into electromagnetics, so I would like to think I understand more than the average person.

David Griffiths' book Introduction to Electrodynamics is pretty much the standard undergrad text, and he does a pretty good job. If you really want to learn, I would suggest that.

 

[TuxDave]

Originally posted by: JohnCU

Originally posted by: cressida
just draw a block diagram and it will show your circuit is incomplete

Okay, wrong, read the whole thread.

I tried skimming the thread and I didn't see an answer anywhere so correct me if I'm wrong. A 1.5V battery will generate a potential DIFFERENCE between the positive end and the negative end. Remember voltage is a measurement of potential difference. If I asked you how tall you were and you say that you're 6ft tall, that's the distance between your head and your feet. If I'm 5ft tall, can you tell me if your head is 1ft higher than mine? No... because I could be standing on a platform, etc.... get it?

 

[JohnCU]

Originally posted by: TuxDave

Originally posted by: JohnCU

Originally posted by: cressida
just draw a block diagram and it will show your circuit is incomplete

Okay, wrong, read the whole thread.

I tried skimming the thread and I didn't see an answer anywhere so correct me if I'm wrong. A 1.5V battery will generate a potential DIFFERENCE between the positive end and the negative end. Remember voltage is a measurement of potential difference. If I asked you how tall you were and you say that you're 6ft tall, that's the distance between your head and your feet. If I'm 5ft tall, can you tell me if your head is 1ft higher than mine? No... because I could be standing on a platform, etc.... get it?

Okay, so neutral ends of batteries are not at 0 volts? That's all I wanna know.

 

[RaynorWolfcastle]

Originally posted by: 91TTZ
Because you won't be completing any circuit. You're sticking a probe into part of 2 completely different, isolated circuits, so of course you're not going to get a reading.

Also, if you don't understand this you really shouldn't be sticking things into wall outlets.

OH FOR THE LOVE OF GOD WILL SOMEONE PLEASE THINK OF ALL THE EEs TOSSING IN THEIR GRAVES.

 

[TheLonelyPhoenix]

Originally posted by: 91TTZ

Originally posted by: JohnCU
Let's say you have a voltmeter, and have the positive test lead touching the positive end of a battery, and the negative plugged into the neutral socket of a wall outlet. Why does it not read the voltage of the battery? Voltage is relative from point to point, and the wall should be at 0, and the battery should be 1.5 V, so it should read 1.5 V shouldn it?

Because you won't be completing any circuit. You're sticking a probe into part of 2 completely different, isolated circuits, so of course you're not going to get a reading.

Also, if you don't understand this you really shouldn't be sticking things into wall outlets.

Weren't you the one who claimed to be an electrical engineer in another thread?

 

[Eli]

Instead of everyone calling everybody else stupid, how about we actually try and learn something?

I found this thread very frustrating. I'm very interested in learning about this stuff, but most of the people that actually know aren't bothering to explain it, they're too busy calling eachother morons.

 

[Pepsi90919]

Originally posted by: JohnCU

Originally posted by: Pepsi90919

Originally posted by: TheLonelyPhoenix

Originally posted by: cressida
just draw a block diagram and it will show your circuit is incomplete

God DAMN it! Did everyone forget how to read at the same time?

just the OP

You just got owned by thinking the ground alternates, so go away please.

oh noes some big scary man on an internet forum is telling me off! :Q

and it was element you were arguing with about the alternating neutral. and he's right.

 

[Pepsi90919]

Originally posted by: Eli
Instead of everyone calling everybody else stupid, how about we actually try and learn something?

I found this thread very frustrating. I'm very interested in learning about this stuff, but most of the people that actually know aren't bothering to explain it, they're too busy calling eachother morons.

moron