Volts, Ohms, Amps and Watts Explained

[Oaken007]

The explanation of dual coil cartomizer resistance at the bottom of the linked page seems different.
Undestanding resistances, LR and HV

Oh my sweet baby jesus, thank you soooo much!!

 

[degnr8]

A dual coil carto consists of two coils of the same resistance. They are wired in parallel so the total resistance is half the resistance of either coil.
For example:
The total resistance of the 1.5ohm dual coil is 1.5ohms, but the resistance of either coil it contains is 3ohms. Both coils are actually 3.0ohms individually, together they are not 6.0, they are 1.5ohms

Seems counter-intuitive and I don't see how it's even possible, but I will defer to those more knowledgeable on the issue than I

 

[xwarp]

^^^^^^^

Is only true if both coils wired in parallel have the exact same resistance value.

If one coil is 1 ohm, and the other is 3 ohms, then the total effective resistance is 0.75 ohms.

Essentially, in parallel resistance, the highest value of resistance will always be less than the lowest resistor value.

 

[AttyPops]

A dual coil carto consists of two coils of the same resistance. They are wired in parallel so the total resistance is half the resistance of either coil.
For example:
The total resistance of the 1.5ohm dual coil is 1.5ohms, but the resistance of either coil it contains is 3ohms. Both coils are actually 3.0ohms individually, together they are not 6.0, they are 1.5ohms

Seems counter-intuitive and I don't see how it's even possible, but I will defer to those more knowledgeable on the issue than I

They are in parallel. So there's LESS effective resistance as a whole because there's two lanes for the electricity to follow. Like a two lane road in a slower moving traffic jam compared to a one lane road at the same speed. Twice the cars get by on the two lane road. So it's LESS restrictive than the one late one. Eh?

Now if they were end-to-end (in series) they would add. Two 3 ohms coils end-to-end would be 6 ohms.
Two 3 ohm coils side by side are 1.5 ohms.

^^^^^^^

Is only true if both coils wired in parallel have the exact same resistance value.

If one coil is 1 ohm, and the other is 3 ohms, then the total effective resistance is 0.75 ohms.

Essentially, in parallel resistance, the highest value of resistance will always be less than the lowest resistor value.

(R1 x R2)/(R1+R2)...OK. But picky. Basically all dual coils are approximately the same ohm coils. Unless you make them yourself... He did say..."the same resistance".

 

[xwarp]

They are in parallel. So there's LESS effective resistance as a whole because there's two lanes for the electricity to follow. Like a two lane road in a slower moving traffic jam compared to a one lane road at the same speed. Twice the cars get by on the two lane road. So it's LESS restrictive than the one late one. Eh?

Now if they were end-to-end (in series) they would add. Two 3 ohms coils end-to-end would be 6 ohms.
Two 3 ohm coils side by side are 1.5 ohms.


(R1 x R2)/(R1+R2)...OK. But picky. Basically all dual coils are approximately the same ohm coils. Unless you make them yourself... He did say..."the same resistance".

Just pointing out a fact that the total resistance of two resistance values in ohms in parallel circuit will always be less than the lowest resistor value in ohms in that circuit.

 

[Oaken007]

Boggles my flippin' mind.

 

[degnr8]

They are in parallel. So there's LESS effective resistance as a whole because there's two lanes for the electricity to follow. Like a two lane road in a slower moving traffic jam compared to a one lane road at the same speed. Twice the cars get by on the two lane road. So it's LESS restrictive than the one late one. Eh?

I can see that. Makes perfect sense when you explain it that way

 

[CloudZ]

They are in parallel. So there's LESS effective resistance as a whole because there's two lanes for the electricity to follow. Like a two lane road in a slower moving traffic jam compared to a one lane road at the same speed. Twice the cars get by on the two lane road. So it's LESS restrictive than the one late one. Eh?

I just want to add that the same principle applies to thicker wire. I'd say that is the wider road with more lanes, while a parallel circuit is like two different roads right next to each other that go to the same place.

The electrical current flows more easily when it has more room to flow through. Even though it really isn't a "stream of electrons", it helps to think of it that way for simple DC circuits.

\*_* Posted from my humanoid robot phone *_*/

 

[soba1]

You really don't have to Oaken. If you know which cartos tast good at what voltage that's all you really need to know. Just treat your voltage like you would a volume knob. If it's too cool turn it up. If it's too hot turn it down. The only people that really need this theoretical stuff are the ones wrapping their own coils

Nooo wait they aren't the only ones. Some of us or OCD nope nope CDO. Gotta keep it in order...
Now that I have a vv vw device I have a bug up my rear. But then as you say it is adjusting till its just right...