Ohm's Law: Who cares!

[Steam Turbine]

Ohm’s Law was an empirical discovery made by an electrical detective called Sherlock Ohm’s… I mean Georg Ohm! What I mean by “empirical” is that he didn’t need any powerful theoretical\mathematical model like this:


To discover it.

Instead, real life experiments alone lead him to discover this simple rule about the relationships that exist in-between voltage, resistance and current.

But why should we, Vapers, care about Ohm’s Law?

For the most part: I think we don’t need to care! If your vape tastes bad, adjust the voltage or wattage of your device until it tastes good.

However:

Ohm’s Law becomes important to a Vaper when he or she tinkers with sub 1 ohm coil. Knowing the amp limitation of your battery and not going over it is essential. Using Ohm’s law to figure out what amperage your coil will be sucking out of your battery can make the difference between an excellent vape and a burnt down house!

All of this is, of course, is only my humble opinion!

EDIT: Sub Ohm coils is not something that I recommend.

 

[Fury83]

More essential is learning about the batteries you have, their limits and buying a good charger. Unless you have a short or build a full ...... coil, a properly charged high quality imr should handle most anything you can come up with.

As for sub ohm, have fun with that. I like to enjoy a vape, not make youtube videos.

 

[Scoop224]

Ohms don't matter nearly as much as wicking. If you can feed a coil juice, it will keep vaping. I've had .9 ohm coils fire just fine on a provari as long as I kept the wick flowing.

 

[Orb Skewer]

Brahmanic meditation is something I've been meaning to have a go at for ages

 

[BlkWolfMidnight]

Ohm's law is important...yes tinkering with sub-ohm is typically bad. You ask why do it.
Simply put I do taste my juices but its so much more then just your coil system. History is I've been doing coils a lot, when I say a lot I mean around an average of 15-20 rebuilds a month, for around...6 months now. I rebuild devices at a local vape meet for folks that wish to learn about coil buidling and RBA devices. I've run sub-ohm for a while.
The mystery on tasting your juice is to provide more airflow, better wicking system ("Loose wrap SS wick" which can be accomplished by back spinning your wick and or doubled up silica) and some way to evenly distribute the heating coils so there are no negitive zones on your wick (cold spots).
Also where as on a higher ohm system I have to wait for vaporization or wrap less (cold spots) I'm getting even heat from top to bottom of my wick with minimal wait time, less time on the inhale for same amount of vapor meaning in theory more battery life (again in theory).
I can see where you can go way, way overboard with the heat though, ideal is 6 watts, high end is 8, start to burn juice flavors at around 10'ish and 11-15 running the danger zone of chemically altering the PG (14.5 to 15 watts).
I'm not saying don't do it if its your thing, but rather then use Sub-Ohm to heat a spot the width of a quarter try for even heat distribution over a large surface area, you'll be amazed at the vapor production and the taste without the burning of the liquid.

<running an RSST on a #19E, 30 guage 5/6 wrap duel coil currently>

 

[Baditude]

More essential is learning about the batteries you have, their limits and buying a good charger. Unless you have a short or build a full ...... coil, a properly charged high quality imr should handle most anything you can come up with.

As for sub ohm, have fun with that. I like to enjoy a vape, not make youtube videos.

I agree with this. What I really have a pet peeve with is noobies who buy their first RBA and want to start out using sub ohm coils because they saw those "big vape" videos, yet they know absolutely nothing about what batteries they should be using, are using cheap no-name batteries they got from E-Bay, and don't even own a multimeter, let alone know why they need one. RBA noobs, do your homework first! http://www.e-cigarette-forum.com/forum/blogs/baditude/4454-7-advice-tips-vapors-looking-try-their-first-rba.html

As PBusardo recently said about sub ohm vaping, "Sometimes, just because you can, doesn't mean you should."

 

[bikerbeagle]

You had me at, "who cares!".

I have no intentions of ever languishing in the seedy underbelly of sub-ohms vaping.

 

[The Ocelot]

Laws Are Made To Be Broken

 

[The Ocelot]

I agree with this. What I really have a pet peeve with is noobies who buy their first RBA and want to start out using sub ohm coils because they saw those "big vape" videos, yet they know absolutely nothing about what batteries they should be using, are using cheap no-name batteries they got from E-Bay, and don't even own a multimeter, let alone know why they need one. RBA noobs, do your homework first! http://www.e-cigarette-forum.com/forum/blogs/baditude/4454-7-advice-tips-vapors-looking-try-their-first-rba.html

As PBusardo recently said about sub ohm vaping, "Just because you can, doesn't mean you should."

I have a problem with members who don't know a carto from a canary being told that RBAs are the only way to go.

 

[Cyia]

I find it kinda fun to learn about that stuff even though I am horrid at math lol. Then again, I am a electrician's daughter so I all I have to say is watts or ohms in ear shot of my dad and I get a 30 minute run down on different things haha

 

[Steam Turbine]

As for sub ohm, have fun with that. I like to enjoy a vape, not make youtube videos.

I agree. I personally like a 1 ohm to 1.2 on a genny... More than enough for me... Although I sometimes go dowm to 0.8 when I don't feel to redo my coil. But at least: I know for a fact that my batteries are good enough for a 0.8 coil.

But some people out there do love sub ohm. Better be safe and know your Ohms law

 

[TheSystemHasFailed]

I just like the vape on a .9-1.0 made with 0.7 ribbon. 3/4 wraps, hunnit percent VEE GEE...le clouds.

 

[zoiDman]

Ohm’s Law was an empirical discovery made by an electrical detective called Sherlock Ohm’s… I mean Georg Ohm! What I mean by “empirical” is that he didn’t need any powerful theoretical\mathematical model like this to discover it:

View attachment 230524

...

Those Line Integrals kinda look like Something that Maxwell would be Proud Of.

 

[the_vape_nerd]

arent you the author of the infamous vaping ......... thread?

where is your douche-tude?

a real douche would insist that anything higher than .3 ohms was for panzies

 

[The Ocelot]

Those Line Integrals kinda look like Something that Maxwell would be Proud Of.

It's elegant, but I'll take a quantum leap here and say mine is more relevant and user friendly. Although, like VV vs. VW, relevance is relative.

Resistance is futile<1Ω otherwise it's V²/R

 

[Steam Turbine]

Those Line Integrals kinda look like Something that Maxwell would be Proud Of.

I hope so: they are his equations!

 

[zoiDman]

I hope so: they are his equations!

I like the Difference Operator Form better myself...

But, like my Grandfather would say, "There are a Lot of Ways to Skin a Catfish."

 

[zoiDman]

... relevance is relative.

...

Now that is Elegant on Many Different Levels.

 

[The Ocelot]

Now that is Elegant on Many Different Levels.

 

[Adam the Aussie]

I'm with the OP, I've been vaping for two years, wouldn't have a clue about ohms law. I buy quality batteries and vape to taste, easy peasy.