flat assembler
Message board for the users of flat assembler.

Index > Heap > About 0-Ohm Resistors

Author
Thread Post new topic Reply to topic
l4m2



Joined: 15 Jan 2015
Posts: 648
l4m2
    What does "0 Ohm 5%" mean?
    Can I use some iron to replace an 0-Ohm Res?
    Can I directly link two part of wire with thin line to take the place of an 0-Ohm Res when used to split for example analog GND and digital GND?
Post 01 Aug 2016, 13:13
View user's profile Send private message Reply with quote
JohnFound



Joined: 16 Jun 2003
Posts: 3500
Location: Bulgaria
JohnFound
0-ohm resistors are aimed to provide jumpers on PCBs that can be mounted by standard placement machines. You can replace them with normal copper wire.
Post 01 Aug 2016, 13:34
View user's profile Send private message Visit poster's website ICQ Number Reply with quote
revolution
When all else fails, read the source


Joined: 24 Aug 2004
Posts: 17278
Location: In your JS exploiting you and your system
revolution
0Ω are usually jumpers that can have various functions.

For single sided boards (and some very high density dual layer board) they can be used to provide an extra dimension and thus for most circumstances you can replace them with almost any good conductor.

For other uses they might be for hardwired options. In = option A, out = option B, or something. For that case you can also replace them with almost anything that conducts.

Another use can be for testing/isolation purposes, in which case the use cases are system dependant. It would pay to check the circuit schematics to see their exact purpose.
Post 01 Aug 2016, 13:43
View user's profile Send private message Visit poster's website Reply with quote
shoorick



Joined: 25 Feb 2005
Posts: 1605
Location: Ukraine
shoorick
it means it has +0.05Ohm/-0.05Ohm resistance Cool
Post 01 Aug 2016, 15:38
View user's profile Send private message Visit poster's website Reply with quote
revolution
When all else fails, read the source


Joined: 24 Aug 2004
Posts: 17278
Location: In your JS exploiting you and your system
revolution
shoorick wrote:
it means it has +0.05Ohm/-0.05Ohm resistance Cool
Hmm, 5% of 0 is ... ? Wink
Post 01 Aug 2016, 15:39
View user's profile Send private message Visit poster's website Reply with quote
shoorick



Joined: 25 Feb 2005
Posts: 1605
Location: Ukraine
shoorick
... 5 times more than 1% of 0. sure! Razz
++++++++++
check with ohm-meter Wink
Post 01 Aug 2016, 15:53
View user's profile Send private message Visit poster's website Reply with quote
YONG



Joined: 16 Mar 2005
Posts: 8000
Location: 22° 15' N | 114° 10' E
YONG
shoorick wrote:
it means it has +0.05Ohm/-0.05Ohm resistance Cool
Can we really have negative resistance? Rolling Eyes

Wink
Post 02 Aug 2016, 03:58
View user's profile Send private message Visit poster's website Reply with quote
revolution
When all else fails, read the source


Joined: 24 Aug 2004
Posts: 17278
Location: In your JS exploiting you and your system
revolution
YONG wrote:
Can we really have negative resistance?
Yes. Although perhaps not what you might first think it is.

Check out my website. There is lots of information about it there.
Post 02 Aug 2016, 04:04
View user's profile Send private message Visit poster's website Reply with quote
l4m2



Joined: 15 Jan 2015
Posts: 648
l4m2
is there a 2-pin thing ,when connected with a voltage source with one pin, the other two pin be a minus resisor when voltage is in a large range?


Description: U and the 15V batt go to a -10k res
Filesize: 13.62 KB
Viewed: 5731 Time(s)

minusRes.png




Last edited by l4m2 on 02 Aug 2016, 04:49; edited 2 times in total
Post 02 Aug 2016, 04:15
View user's profile Send private message Reply with quote
YONG



Joined: 16 Mar 2005
Posts: 8000
Location: 22° 15' N | 114° 10' E
YONG
revolution wrote:
Check out my website. There is lots of information about it there.
I am now judging you based on your post.

Stop retelling your old joke! Mad

Wink
Post 02 Aug 2016, 04:17
View user's profile Send private message Visit poster's website Reply with quote
YONG



Joined: 16 Mar 2005
Posts: 8000
Location: 22° 15' N | 114° 10' E
YONG
revolution wrote:
YONG wrote:
Can we really have negative resistance?
Yes.
We can have a negative slope on a Current-Voltage graph, i.e., an increase in V causes a decrease in I. But I don't think we can actually have negative resistance.

Wink
Post 02 Aug 2016, 04:24
View user's profile Send private message Visit poster's website Reply with quote
revolution
When all else fails, read the source


Joined: 24 Aug 2004
Posts: 17278
Location: In your JS exploiting you and your system
revolution
YONG wrote:
revolution wrote:
Check out my website. There is lots of information about it there.
I am now judging you based on your post.

Stop retelling your old joke! Mad
If people stop asking dumb questions that can be answered with a quick search then I will stop directing people to my website.
Post 02 Aug 2016, 04:36
View user's profile Send private message Visit poster's website Reply with quote
revolution
When all else fails, read the source


Joined: 24 Aug 2004
Posts: 17278
Location: In your JS exploiting you and your system
revolution
YONG wrote:
We can have a negative slope on a Current-Voltage graph, i.e., an increase in V causes a decrease in I.
That is the definition of negative resistance.
YONG wrote:
But I don't think we can actually have negative resistance.
Razz
Post 02 Aug 2016, 04:41
View user's profile Send private message Visit poster's website Reply with quote
YONG



Joined: 16 Mar 2005
Posts: 8000
Location: 22° 15' N | 114° 10' E
YONG
revolution wrote:
If people stop asking dumb questions that can be answered with a quick search then I will stop directing people to my website.
How come you changed your condition? Last time you said, "I will [stop doing so] when people remember it without me reminding." Refer to this.

See, at the end of the day, you would just keep doing so no matter what!

This is what I call "DUMB"! Mad

Wink
Post 02 Aug 2016, 05:52
View user's profile Send private message Visit poster's website Reply with quote
revolution
When all else fails, read the source


Joined: 24 Aug 2004
Posts: 17278
Location: In your JS exploiting you and your system
revolution
YONG wrote:
revolution wrote:
If people stop asking dumb questions that can be answered with a quick search then I will stop directing people to my website.
How come you changed your condition? Last time you said, "I will [stop doing so] when people remember it without me reminding." Refer to this.

See, at the end of the day, you would just keep doing so no matter what!
The end result is the same, and the only difference is just semantics. And people still haven't remembered unfortunately. People still ask dumb questions (me included) so they need to be reminded occasionally.
Post 02 Aug 2016, 06:04
View user's profile Send private message Visit poster's website Reply with quote
YONG



Joined: 16 Mar 2005
Posts: 8000
Location: 22° 15' N | 114° 10' E
YONG
revolution wrote:
People still ask dumb questions
Why can't people ask dumb questions?

Very often, we can learn from lesser people.

Refer to:
https://en.wiktionary.org/wiki/%E4%B8%8D%E6%81%A5%E4%B8%8B%E5%95%8F

Wink
Post 03 Aug 2016, 06:07
View user's profile Send private message Visit poster's website Reply with quote
revolution
When all else fails, read the source


Joined: 24 Aug 2004
Posts: 17278
Location: In your JS exploiting you and your system
revolution
YONG wrote:
revolution wrote:
People still ask dumb questions
Why can't people ask dumb questions?
I never said they can't. Indeed they can. I do it also. But when things like Google exist why would someone want to ask a forum and wait perhaps many hours for an answer, when instead they can search for an answer and be instantly gratified?
Post 03 Aug 2016, 10:37
View user's profile Send private message Visit poster's website Reply with quote
YONG



Joined: 16 Mar 2005
Posts: 8000
Location: 22° 15' N | 114° 10' E
YONG
revolution wrote:
why would someone want to ask a forum and wait perhaps many hours for an answer?
Because some people need guidance, and they know that there is a wise, utterly-knowledgeable forum member whose website contains an incredible amount of information that covers every identifiable field of study in the state of the art. Besides, they are eager to find out the true gender of that particular forum member.

Wink
Post 03 Aug 2016, 13:17
View user's profile Send private message Visit poster's website Reply with quote
Display posts from previous:
Post new topic Reply to topic

Jump to:  


< Last Thread | Next Thread >
Forum Rules:
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You can attach files in this forum
You can download files in this forum


Copyright © 1999-2020, Tomasz Grysztar.

Powered by rwasa.