Ohms meter question

[Michael woodward]

Hello, I recently bought an ohms meter and as the coil heats up the resistance gets higher...
Is this normal? never used one before so never noticed it.

Thank you.

 

[CMD-Ky]

Hello, I recently bought an ohms meter and as the coil heats up the resistance gets higher...
Is this normal? never used one before so never noticed it.

Thank you.

Are your coils stainless steel? That is one characteristic of stainless.

 

[lil_buddy]

"Since the electrical resistance of a conductor such as a copper wire is dependent upon collisional proccesses within the wire, the resistance could be expected to increase with temperature since there will be more collisions, and that is borne out by experiment. "

Temperature Coefficient of Resistance

 

[Michael woodward]

I have tried Kanthal, SS and a premade one I got with the limitless classic.
some change by .2- .4.

 

[CMD-Ky]

I have tried Kanthal, SS and a premade one I got with the limitless classic.
some change by .2- .4.

I have not seen a change in resistance using kanthal only stainless.

 

[Michael woodward]

well its changing just not by much

 

[CMD-Ky]

well its changing just not by much

I have exhausted my knowledge - came rather quickly.

 

[SteveS45]

Don't have any idea what copper wire has to do with the OP's question just thought I might mention never use copper wire to make vaping coils.

 

[Michael woodward]

Don't have any idea what copper wire has to do with the OP's question just thought I might mention never use copper wire to make Vaping Coils.

Oh I wouldnt... kanthal or ss

 

[Joergl100]

Basically every metal has a PTC...positive temperature coefficient, even Kanthal! But...some only very little, others more, some high...used for TC.

 

[SteveS45]

Oh I wouldnt... kanthal or ss

Started with Kanthal myself but after the first SS316L coils I might not ever use the Kanthal again!

 

[lil_buddy]

Don't have any idea what copper wire has to do with the OP's question just thought I might mention never use copper wire to make Vaping Coils.

*such as* copper. All normal conducting metals which current carrying wires are made of display the behavior the OP described which is expressed by the temperature coefficient of the metal.

 

[SteveS45]

*such as* copper. All normal conducting metals which current carrying wires are made of display the behavior the OP described which is expressed by the temperature coefficient of the metal.

It would be prudent to make sure you note NOT to use copper when trying to give advise to new members.

 

[lil_buddy]

It would be prudent to make sure you note NOT to use copper when trying to give advise to new members.

I gave no advice to anyone, actually. It would be prudent to actually read what a person typed and linked before criticizing.

 

[SteveS45]

I gave no advice to anyone, actually. It would be prudent to actually read what a person typed and linked before criticizing.

Not criticizing just making note that copper should not be used for coils. You sort of left that part out.

 

[lil_buddy]

Not criticizing just making note that copper should not be used for coils. You sort of left that part out.

I also left out that one shouldn't use dental floss and human hairs because I never made any assertions about what would make a good/bad material for making coils. No one ever asked that question.

 

[Michael woodward]

...
So... is it suppose to be doing this or? kinda got off topic |

 

[lil_buddy]

...
So... is it suppose to be doing this or? kinda got off topic |

Short answer: yes

 

[Michael woodward]

Short answer: yes

awesome so im not messing it up cheers

 

[ChelsB]

Hope it's ok to chime in. I'm wondering what the different between a coil that doesn't read (I'm pretty sure that means a short) and one that reads way too high.


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