question about ohms

[Rossum]

Adding to the above, resistance increases with wire-length too. That's why longer extension cords are thicker as a general rule, so they don't build up too much resistance and melt.

For a given wire size and current, the heat produced per foot of cable is the same, regardless of the cable's length. So unless you've got the long extension cable tightly bunched up and insulated, heat isn't really an issue. The real reason long cords are ticker is to lessen voltage drop over the long length. Some loads (especially motors) really don't like voltage drop under load.

 

[AttyPops]

For a given wire size and current, the heat produced per foot of cable is the same, regardless of the cable's length. So unless you've got the long extension cable tightly bunched up and insulated, heat isn't really an issue. The real reason long cords are ticker is to lessen voltage drop over the long length. Some loads (especially motors) really don't like voltage drop under load.

OK. It's probably the reverse I was thinking of then, maybe it was....often to save weight or expense or whatever, longer cords can be thinner wire and then you overload them easier (lower amp ratings). I remember something about it, and of course the "don't overload" thing. So thanks. I stand corrected.

Could have sworn it was about resistance and heat, but "don't overload" will do. And the voltage drop issue makes sense.

The resistance still increases though (the main point I was making). So that's still true!

 

[Rossum]

The resistance still increases though (the main point I was making). So that's still true!

Absolutely. The total resistance increased proportionally with the length of the conductor.

 

[greek mule]

Do you like vaping at 10 watts? If so, you're good. What does the manufacturer of the coil recommend?

Are you at all familiar with the Ohm's Law? Here's what you need to know: Wattage (power, heat generated by your mod) = Voltage squared (of your battery) divided by Resistance (of your coil). All you need to do with a regulated mod is to choose the wattage you want--I suggest following manufacturer's recommendations for any given coil--and the mod will calculate the voltage needed.

When using a new coil, always start at the lowest resistance recommended and then work your way up if needed.

it's a typo,she meant start at the lowest wattage recommended and go up

 

[Katya]

it's a typo,she meant start at the lowest wattage recommended and go up

Thanks for catching it!

In my defense, it was 1:25 AM in CA.

Ooops, too late to edit. My editing window has closed. Sorryyyyyyyyyyyyyyyyyyyy................

Requested help from our friendly moderating staff. Don't want to leave it like that. Oy.

 

[Katya]

Requested help from our friendly moderating staff

Ask and you shall receive! Thank you, @classwife

 

[classwife]

Ask and you shall receive! Thank you, @classwife

My pleasure !