Volts ...Ohms...Watts...and the burn

[want2quit2day]

Scenario 1...1.8 ohm coil, 3.8 volts setting = 8.0 watts
Scenario 2...2.4 ohm coil, 4.4 volts setting = 8.0 watts

Why would someone choose scenario 1 over scenario 2, or vice versa? Isn't 8.0 watts the same burn at the coil in both scenarios? What would make one scenario better or worse than the other?

Thanks

 

[SissySpike]

You answered your own question

 

[steved5600]

Watts are watts no matter how you arrive at them. With the exception in ac and inductive loads like motors. Don't get me started on that.
You did answer your own question. LOL

 

[gavind4]

why not go for 9?

 

[Infinite]

Actually, Yes watts are watts. That's a fact. However what is a bit more subjective is how those watts are achieved. Example, if using a low res gauge wire to get more turns, those wats cover more area of your wick... Therefore producing a more "pronounced" vape. Even more variance if using twisted wire, the vape at x wattage is even further "pronounced". You guess what I prefer

My 2 Cents

 

[zoiDman]

What about Amps? Shouldn't they be Considered?

There a Tri-Partner Dance of Volts, Resistance and Amps.

 

[muriarte]

Same watts, but more surface to evaporate liquid in the 2.4 ohm coil, therefore, more vapor!

 

[Dave76]

What about Amps? Shouldn't they be Considered?

There a Tri-Partner Dance of Volts, Resistance and Amps.

Yes, but the very basic form of Ohm's law is: V=I*R and power is P=V*I

For vaping purposes, we use a little algebra and commonly see power expressed as V*V/R. (V squared divided by R)

Do a little algebra and you will see that power can also be expressed as I*I*R. (I squared times R)

It all works out the same but with e-cigs you usually know your Voltage and Resistance so the first equation is used.

 

[Hoosier]

What about Amps? Shouldn't they be Considered?

There a Tri-Partner Dance of Volts, Resistance and Amps.

Yep, don't ignore the current. Some batteries clip lower than others so, depending on the type of circuitry that determines the voltage, it could impact the actual wattage.

 

[Davenkay]

I'm a little dumb about electricity, so please help me with this question. Will a higher ohm atomizer operating at a higher voltage drain the battery faster even though the watts are the same?

 

[Hoosier]

I'm a little dumb about electricity, so please help me with this question. Will a higher ohm atomizer operating at a higher voltage drain the battery faster even though the watts are the same?

Technically, yes. But I doubt you would actually notice the difference.

 

[tj99959]

I think it's great that we have a choice, and here is an example of why.

I have a SB sitting in front of me with a Kick in it set at 8 watts. I can put either of your two atomizers on it and they will fire at 8 watts, but they will not taste the same. There is also a noticeable difference in the temperature of the atomizer itself.

Many times the math and the real world experence are quite different.

 

[zoiDman]

...

Many times the math and the real world experence are quite different.

This is Very True.

There is the Issue of How Fast an Atomizer Wire reaches it's Temperature. And as another have mentioned, Surface Area in regards to Wicking Area.

 

[zoiDman]

Yep, don't ignore the current. Some batteries clip lower than others so, depending on the type of circuitry that determines the voltage, it could impact the actual wattage.

Hoosier is Correct.

Some Batteries can not Dishcharge at the Same Rate as other Batteries Amp-wise.

There can also be the Issue of a PV not being able to Handle High amounts of Amps. My Lavatube will limit the Amps to about 2.25. Where as some PV's can handle More.

Like my Provari v2 which I think can Handle 3.5 amps. I dunno fursure because I don't Vape at such a High Amp or Watt Level. But some do so Amps are Important to them.

 

[NancyR]

And then there is the fact that not all of us have or want vv devices, using lr on my 3.7 works fine for me, so why spend the extra money to get the same wattage, when what I have does exactly what I want.

 

[zoiDman]

And then there is the fact that not all of us have or want vv devices, using lr on my 3.7 works fine for me, so why spend the extra money to get the same wattage, when what I have does exactly what I want.

This is when Ohms become the Most Important Factor. When the Voltage can not be changed.

 

[Dave76]

As a brand new vaper, my logic was that the VV made the most sense for me. I had no idea what I would or would not like and didn't want to search through several battery options. With the VV, I twisted the knob until I found what I wanted.

 

[BikerBob]

Volts and Amps and Ohms, oh my!

They are related. Quick and simplified: Amps is the amount of electricty flowing. Ohms is how the wire blocks the electricty flowing. Volts is how much pressure is behind the electricity. Watts is the amount of work done by the flowing electricity. Ohm's Law (and Watt's Law) describe the relationship between volts, ohms, amps, and watts.

The OP question about what the difference is between various '8 watts'. I have a 100 watt electric blanket. It keeps me very warm, and doesn't burn me. I have a 100 watt soldering iron. It can burn holes in things, and melt metal (solder). Difference is how much heat in how little space. Larger coil is usually higher ohms, and will heat up more ejuice at a time, but not too hot, and not too fast (bigger pot simmering). Smaller coil/lower ohms will heat up less ejuice at a time, but hotter and faster (smaller pot boiling). Some people like it one way, others like it the other way.

Battery capacity: some batteries are rated in watt-hours, but most batteries are rated in milli-amp-hours (multiply by voltage to get the milli-watt-hours). One of my batteries is rated 8 watt-hours, implying that I can run that 8-watt coil for 1 hour before my battery needs charging. 3.8 volts / 1.8 ohms = 2.111 amps, so I'm guessing my battery is 2100 mAh, meaning it can supply 2.1 amps at 3.8 volts for 1 hour.

A rough guide to battery life: 100 mAh gives the average vaper 1 hour of vaping time. I'm a slightly heavier vaper, and start a fresh battery in the morning, and it needs a charge by the time I go to bed.

Real world experience: In theory, practice and theory are the same. In practice, they're not.

 

[MattBott]

Scenario 1...1.8 ohm coil, 3.8 volts setting = 8.0 watts
Scenario 2...2.4 ohm coil, 4.4 volts setting = 8.0 watts

Why would someone choose scenario 1 over scenario 2, or vice versa? Isn't 8.0 watts the same burn at the coil in both scenarios? What would make one scenario better or worse than the other?

Thanks

Using Ohm's Law, Current (amps) = Volts / Resistance (ohms)

Scenario 1 = 2.1 amps
Scenario 2 = 1.8 amps

That's the difference. Some people say not to push more than 2 amps through an ego, as it will wear the battery down faster. Also, a lot of cheaper buttons have a lower Amp rating. Those huge buttons you see on larger mods generally have a 3 amp rating, while some have 5.

 

[want2quit2day]

Using Ohm's Law, Current (amps) = Volts / Resistance (ohms)

Scenario 1 = 2.1 amps
Scenario 2 = 1.8 amps

That's the difference. Some people say not to push more than 2 amps through an ego, as it will wear the battery down faster. Also, a lot of cheaper buttons have a lower Amp rating. Those huge buttons you see on larger mods generally have a 3 amp rating, while some have 5.

That makes good sense if true. I was more interested in vapor production between the two scenarios. Someone mentioned more winding be able to produce more vapor made sense too. if there are two more windings increasing surface area of the coil to wick there may be more vapor vapor. Something I will have to try next time I make a coil.