Resistance of a dual, triple, or quad coil

[MauHei]

I know I'm a newbie but...
Did you know that most people misuse ohm's law when discussing dual or more coils? Each coil has an individual resistance and additional coils reduce the resistance of the entire circuit not the resistance of each coil.

Example:
Dual coil
Coil 1 is 1 ohm
Coil 2 is 1 ohm
Total circuit resistance (what you see on your little meter) is 0.5 ohm since they are in parallel.
Each coil is still one ohm and operates that way as far as heat etc.

The 0.5 ohm is total circuit resistance and is a value but has no actual impact on your vape production. You are producing one ohm vape times two. You should really say dual one ohm rather than 0.5 ohm but most people just say total circuit resistance since that's what you use as far as what the battery/setup can handle.

 

[rusirius]

It's not that what you're saying isn't accurate... it is... but I'm not sure I understand your point. I don't think anyone really looks at a dual coil setup in parallel and thinks "Oh, these are .5 ohm coils..." In fact, they know they are 1 ohm coils since they've built them specifically to hit the .5 mark when put in parallel...

As far as looking at each individual coil... Why? You said it yourself, "total circuit resistance since that's what you use as far as what the battery/setup can handle" Well... Exactly... It's total circuit resistance that matters in terms of safety... So that's exactly how people should look at it... Since that's the most important thing honestly.

I'm sorry, I'm not being contradictory, I'm just not sure I really understand your point... To me it's kinda like saying this soda on my desk... I shouldn't look at it as a "coke"... Instead I should look at it as water which has been flavored and sweetened, chilled and pressurized with CO2 and provided for my enjoyment. If I'm concerned about an individual part of the soda, like exactly how many mg of caffeine it has, then yes by all means I need to look at the parts individually... But if I'm just thirsty and want something to drink ......... you know?

 

[MauHei]

It made me think of it when someone was looking up coil heating based on ohms and using the total circuit on a quad build. Just thought it was an interesting clarification for interpreting some of the sub ohm discussions.

 

[Lanarian]

Question I have is regard ing Heat content..
If a single coil is running at 7 watts we get X for heat from that coil (X being heat generated by coil - heat absorbed by juice - heat reduced by airflow).
If we then double that single coil in a parallel setup, do we have to double the wattage to get the same X from each coil? (This would be a Watt regulated mod)
The question carries on to Triple Coils, Parallel Coils in Dual setup and parallel coils in a Triple setup (Just got an Onslaught and the three coil thing is a wee bit spooky)