I need some help quick. Ok so when I put a build on a VW device and the Ohms is say, .10 and the colts turn out to be like 3.50 why do the volts get higher when I put a .15 build on it! I feel like I use less watts when I use a .15 build than the .10 build, the watts will be the same but the volts change every ohm I feel like?? And another question is why On a regular VW device I can vape at 85-90 watts and then I switch to my dna 200 with the same rda and build and it requires like 110watts to get the same ramp up and vape pretty much? So can someone answer these questions please, thanks.
Question about Voltage and Ohm
- Thread starter Bn0_Vapes
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- th_trl_thread_readers 0
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At the same watts setting, a higher-ohm coil will use more volts. The relationship is Watts = Volts^2 / Ohms, so as either volts or ohms increase, the other one has to increase as well if the watts are going to stay the same. If the volts go up without the ohms, then the watts go up as well, and if the ohms go up without the volts, then the watts go down. On a variable-wattage (VW) device, you select a power (watts) setting, and then the device reads the resistance (ohms) and adjusts the voltage appropriately. So yes, if you keep the wattage setting the same, and attach a coil with higher resistance, you can expect the device to deliver a higher voltage to meet that same set wattage.
As far as what you're experiencing between different devices, that's probably a case of either 1) slight inaccuracies in the built-in ohm readers on the devices, leading one to apply more volts to achieve the same calculated power setting, and/or 2) one device's power output being more accurately tuned than the other, so that one of them outputs either more or less watts than what it says on the screen.
As far as what you're experiencing between different devices, that's probably a case of either 1) slight inaccuracies in the built-in ohm readers on the devices, leading one to apply more volts to achieve the same calculated power setting, and/or 2) one device's power output being more accurately tuned than the other, so that one of them outputs either more or less watts than what it says on the screen.
So if I wanted to make the better last longer without really changing the watts a lot higher, should I use a .10 coil or the .15
more ohm = more volts to = the same watts
see even with regulated mods, one should still know ohms law
see even with regulated mods, one should still know ohms law
Not necessarily. In a regulated mod, the battery is just a container that, for the sake of simplicity, you can think of as a container full of amps. The battery doesn't care what the resistance of the atomizer is because the board of the mod takes care of that side of the equation.
Let's say that you've got an 18650 at its nominal 3.7 volts. If you set the mod to fire at 40 watts, the regulator will always pull 10.8 amps out of the battery, regardless of atomizer resistance.
You're right, of course. I don't know what I was thinking. I'll blame it on the a.m., even though it happened noon-thirty-ish. Watts is watts as far as the battery is concerned, and that's that. Power in = power out.
Ah, it happens. I work odd hours and my brain gets vapor locked all the time.
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