Are pencils electrically conductive?

2008-12-03 10:35:45

#1

Freezer7Pro: I don't come here a lot anymore.; +1,447|6217|Winland

Yes, they are.

Hooked up five 12V batteries in series. Probably around 20 amps going through that pencil.

Last edited by Freezer7Pro (2008-12-03 10:48:08)

The idea of any hi-fi system is to reproduce the source material as faithfully as possible, and to deliberately add distortion to everything you hear (due to amplifier deficiencies) because it sounds 'nice' is simply not high fidelity. If that is what you want to hear then there is no problem with that, but by adding so much additional material (by way of harmonics and intermodulation) you have a tailored sound system, not a hi-fi. - Rod Elliot, ESP

2008-12-03 10:36:02

#2

FatherTed: xD; +3,936|6520|so randum

Everything is.

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2008-12-03 10:38:08

#3

FatherTed: xD; +3,936|6520|so randum

Also 400amps means that the pencils had fuck all resistance

V=IR

therefore

R=V/I

R=(12*5)/400

R=0.15Ohm

Last edited by FatherTed (2008-12-03 10:39:05)

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2008-12-03 10:45:13

#4

SizzlingMidget: Member; +39|6319|UK

Ever heard of something called Graphite?

2008-12-03 10:47:30

#5

Freezer7Pro: I don't come here a lot anymore.; +1,447|6217|Winland

FatherTed wrote:
Also 400amps means that the pencils had fuck all resistance

V=IR

therefore

R=V/I

R=(12*5)/400

R=0.15Ohm

Yeh, 400A is a bit too high, wasn't thinking.

But you're forgetting that they're in series, so it's 65V.

Just measured the pencil, it's 4Ohm.

So 16,25A.

The idea of any hi-fi system is to reproduce the source material as faithfully as possible, and to deliberately add distortion to everything you hear (due to amplifier deficiencies) because it sounds 'nice' is simply not high fidelity. If that is what you want to hear then there is no problem with that, but by adding so much additional material (by way of harmonics and intermodulation) you have a tailored sound system, not a hi-fi. - Rod Elliot, ESP

2008-12-03 10:49:14

#6

FatherTed: xD; +3,936|6520|so randum

Freezer7Pro wrote:
FatherTed wrote:
Also 400amps means that the pencils had fuck all resistance

V=IR

therefore

R=V/I

R=(12*5)/400

R=0.15Ohm
Yeh, 400A is a bit too high, wasn't thinking.

But you're forgetting that they're in series, so it's 65V.

Just measured the pencil, it's 4Ohm.

So 16,25A.

Series V works like V+V+V etc etc

So your overall V is just 5x12. Which is 60

Small hourglass island
Always raining and foggy
Use an umbrella

2008-12-03 10:51:36

#7

Freezer7Pro: I don't come here a lot anymore.; +1,447|6217|Winland

FatherTed wrote:
Freezer7Pro wrote:
FatherTed wrote:
Also 400amps means that the pencils had fuck all resistance

V=IR

therefore

R=V/I

R=(12*5)/400

R=0.15Ohm
Yeh, 400A is a bit too high, wasn't thinking.

But you're forgetting that they're in series, so it's 65V.

Just measured the pencil, it's 4Ohm.

So 16,25A.
Series V works like V+V+V etc etc

So your overall V is just 5x12. Which is 60

No, as my batteries are properly charged. Ironically, a 12V battery is considered discharged at around 12V.

The idea of any hi-fi system is to reproduce the source material as faithfully as possible, and to deliberately add distortion to everything you hear (due to amplifier deficiencies) because it sounds 'nice' is simply not high fidelity. If that is what you want to hear then there is no problem with that, but by adding so much additional material (by way of harmonics and intermodulation) you have a tailored sound system, not a hi-fi. - Rod Elliot, ESP

2008-12-03 10:53:49

#8

FatherTed: xD; +3,936|6520|so randum

Freezer7Pro wrote:
FatherTed wrote:
Freezer7Pro wrote:

Yeh, 400A is a bit too high, wasn't thinking.

But you're forgetting that they're in series, so it's 65V.

Just measured the pencil, it's 4Ohm.

So 16,25A.
Series V works like V+V+V etc etc

So your overall V is just 5x12. Which is 60
No, as my batteries are properly charged. Ironically, a 12V battery is considered discharged at around 12V.

I'm using 'perfect world' physics

Small hourglass island
Always raining and foggy
Use an umbrella

2008-12-03 10:54:40

#9

Freezer7Pro: I don't come here a lot anymore.; +1,447|6217|Winland

FatherTed wrote:
Freezer7Pro wrote:
FatherTed wrote:

Series V works like V+V+V etc etc

So your overall V is just 5x12. Which is 60
No, as my batteries are properly charged. Ironically, a 12V battery is considered discharged at around 12V.
I'm using 'perfect world' physics

I'm using facts.

The idea of any hi-fi system is to reproduce the source material as faithfully as possible, and to deliberately add distortion to everything you hear (due to amplifier deficiencies) because it sounds 'nice' is simply not high fidelity. If that is what you want to hear then there is no problem with that, but by adding so much additional material (by way of harmonics and intermodulation) you have a tailored sound system, not a hi-fi. - Rod Elliot, ESP

2008-12-03 10:54:59

#10

FatherTed: xD; +3,936|6520|so randum

Freezer7Pro wrote:
FatherTed wrote:
Freezer7Pro wrote:

No, as my batteries are properly charged. Ironically, a 12V battery is considered discharged at around 12V.
I'm using 'perfect world' physics
I'm using facts.

do you do physics at school?

Small hourglass island
Always raining and foggy
Use an umbrella

2008-12-03 10:58:10

#11

Freezer7Pro: I don't come here a lot anymore.; +1,447|6217|Winland

FatherTed wrote:
Freezer7Pro wrote:
FatherTed wrote:

I'm using 'perfect world' physics
I'm using facts.
do you do physics at school?

We do electronics.

The idea of any hi-fi system is to reproduce the source material as faithfully as possible, and to deliberately add distortion to everything you hear (due to amplifier deficiencies) because it sounds 'nice' is simply not high fidelity. If that is what you want to hear then there is no problem with that, but by adding so much additional material (by way of harmonics and intermodulation) you have a tailored sound system, not a hi-fi. - Rod Elliot, ESP

2008-12-03 10:59:35

#12

FatherTed: xD; +3,936|6520|so randum

Freezer7Pro wrote:
FatherTed wrote:
Freezer7Pro wrote:

I'm using facts.
do you do physics at school?
We do electronics.

hmm.

not sure how electronics goes, but in physics (esp exams), its generally preferred you stick to 'perfect world' physics.

Just before you get in any bad habits!

AND FOR THE LOVE OF GOD REMEMBER TO STANDARDISE DECIMAL PLACES WITHIN AN ASSIGNMENT

^is the most annoying thing in the world

Small hourglass island
Always raining and foggy
Use an umbrella

2008-12-03 11:01:01

#13

ghettoperson: Member; +1,943|6669

SizzlingMidget wrote:
Ever heard of something called Graphite?

2008-12-03 11:01:19

#14

Freezer7Pro: I don't come here a lot anymore.; +1,447|6217|Winland

FatherTed wrote:
Freezer7Pro wrote:
FatherTed wrote:

do you do physics at school?
We do electronics.
hmm.

not sure how electronics goes, but in physics (esp exams), its generally preferred you stick to 'perfect world' physics.

Just before you get in any bad habits!

AND FOR THE LOVE OF GOD REMEMBER TO STANDARDISE DECIMAL PLACES WITHIN AN ASSIGNMENT

^is the most annoying thing in the world

We tend to go by the real thing.

The idea of any hi-fi system is to reproduce the source material as faithfully as possible, and to deliberately add distortion to everything you hear (due to amplifier deficiencies) because it sounds 'nice' is simply not high fidelity. If that is what you want to hear then there is no problem with that, but by adding so much additional material (by way of harmonics and intermodulation) you have a tailored sound system, not a hi-fi. - Rod Elliot, ESP

2008-12-03 11:58:54

#15

CameronPoe: Member; +2,925|6575

Ladies, if you had 60 A flowing through pencils in your bedroom you probably wouldn't be posting..... anymore.

2008-12-03 12:03:26

#16

hoplite :O: Member; +33|5655

End of the day. Pencils do conduct electricity. /argument

2008-12-03 12:09:44

#17

wensleydale8: Member; +81|6789|LEEDS!!!!!, Yorkshire

CameronPoe wrote:
Ladies, if you had 60 A flowing through pencils in your bedroom you probably wouldn't be posting..... anymore.

well nor would his family if they all grabbed hold of the pencil.

Dear God please let my karma one day reach 100, whether it be tomorrow or 1000 years in the future i want it to happen.

2008-12-03 12:11:33

#18

Freezer7Pro: I don't come here a lot anymore.; +1,447|6217|Winland

CameronPoe wrote:
Ladies, if you had 60 A flowing through pencils in your bedroom you probably wouldn't be posting..... anymore.

Why wouldn't I?

The idea of any hi-fi system is to reproduce the source material as faithfully as possible, and to deliberately add distortion to everything you hear (due to amplifier deficiencies) because it sounds 'nice' is simply not high fidelity. If that is what you want to hear then there is no problem with that, but by adding so much additional material (by way of harmonics and intermodulation) you have a tailored sound system, not a hi-fi. - Rod Elliot, ESP

2008-12-03 12:12:18

#19

CameronPoe: Member; +2,925|6575

Freezer7Pro wrote:
CameronPoe wrote:
Ladies, if you had 60 A flowing through pencils in your bedroom you probably wouldn't be posting..... anymore.
Why wouldn't I?

That is a hefty wad of current, 100 times more than enough to kill a man - and make absolute shit of a pencil I would imagine.

2008-12-03 12:14:17

#20

wensleydale8: Member; +81|6789|LEEDS!!!!!, Yorkshire

isnt it something like 6milliA that will kill you?

Dear God please let my karma one day reach 100, whether it be tomorrow or 1000 years in the future i want it to happen.

2008-12-03 12:14:47

#21

Brasso: member; +1,549|6650

graphite is, pencil mods woooo

"people in ny have a general idea of how to drive. one of the pedals goes forward the other one prevents you from dying"

2008-12-03 12:17:02

#22

CameronPoe: Member; +2,925|6575

wensleydale8 wrote:
isnt it something like 6milliA that will kill you?

> 0.1 A

2008-12-03 12:17:48

#23

Freezer7Pro: I don't come here a lot anymore.; +1,447|6217|Winland

CameronPoe wrote:
Freezer7Pro wrote:
CameronPoe wrote:
Ladies, if you had 60 A flowing through pencils in your bedroom you probably wouldn't be posting..... anymore.
Why wouldn't I?
That is a hefty wad of current, 100 times more than enough to kill a man - and make absolute shit of a pencil I would imagine.

wensleydale8 wrote:
isnt it something like 6milliA that will kill you?

AC. This is DC.

An AA battery can discharge a good 1.5A, but you won't die from holding one. Same with a car battery, it can output a good kA, but you can still touch it without even feeling it. Your body simply has too high resistance.

The idea of any hi-fi system is to reproduce the source material as faithfully as possible, and to deliberately add distortion to everything you hear (due to amplifier deficiencies) because it sounds 'nice' is simply not high fidelity. If that is what you want to hear then there is no problem with that, but by adding so much additional material (by way of harmonics and intermodulation) you have a tailored sound system, not a hi-fi. - Rod Elliot, ESP

2008-12-03 12:24:12

#24

S.Lythberg: Mastermind; +429|6466|Chicago, IL

Freezer7Pro wrote:
CameronPoe wrote:
Freezer7Pro wrote:

Why wouldn't I?
That is a hefty wad of current, 100 times more than enough to kill a man - and make absolute shit of a pencil I would imagine.
wensleydale8 wrote:
isnt it something like 6milliA that will kill you?
AC. This is DC.

An AA battery can discharge a good 1.5A, but you won't die from holding one. Same with a car battery, it can output a good kA, but you can still touch it without even feeling it. Your body simply has too high resistance.

100,000 ohms if I recall correctly, down to >1000 if you're soaked, so a AA can only put out about .015mA of current in your hand, not even noticeable (although you could theoretically discharge the battery by holding it, lol)

2008-12-03 13:57:54

#25

doompenguin: Member; +12|5951|London

We did this in Physics and the pencil caught fire, then exploded.

We thought it was so awesome we donated our own pencils to watch them blow up.

BF2S Forums Are pencils electrically conductive?

FatherTed wrote:

Freezer7Pro wrote:

FatherTed wrote:

FatherTed wrote:

Freezer7Pro wrote:

FatherTed wrote:

Freezer7Pro wrote:

FatherTed wrote:

Freezer7Pro wrote:

FatherTed wrote:

Freezer7Pro wrote:

FatherTed wrote:

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FatherTed wrote:

Freezer7Pro wrote:

FatherTed wrote:

Freezer7Pro wrote:

FatherTed wrote:

Freezer7Pro wrote:

FatherTed wrote:

Freezer7Pro wrote:

SizzlingMidget wrote:

FatherTed wrote:

Freezer7Pro wrote:

FatherTed wrote:

CameronPoe wrote:

CameronPoe wrote:

Freezer7Pro wrote:

CameronPoe wrote:

wensleydale8 wrote:

CameronPoe wrote:

Freezer7Pro wrote:

CameronPoe wrote:

wensleydale8 wrote:

Freezer7Pro wrote:

CameronPoe wrote:

Freezer7Pro wrote:

wensleydale8 wrote:

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