New to this whole building thing..

[Vaperfromsweden21]

Hey! I am wondering this.. If I use 2 coils that are 0.5 ohm's each.. Will the resistance turn out to 1.0 or what? I don't understand.

 

[TwistedThrottle]

Steamengine dot com- its got everything you need, except a digital multimeter and an ohms reader which you should most definitely have if you are planning on building your own coils. Both coils need to be of the same resistance, that is the same inside diameter and same amount of metal wrapped to make the coil. dual coils at 0.5ohm each would give you a 0.25ohm load. Thats getting into the danger catagory because the tolerances of cheap ohms readers could be off by that much. Thats why I check on at least two ohms meters. Be smart, check, recheck and check again.

 

[whiteowl84]

If wired in series, yes. In parallel it would be 0.25.
Study on ohms law...should take all of 10 minutes to get this far. =)

 

[TwistedThrottle]

Uhh... its a coil not a speaker box. Dunno why you'd "wire" a coil in series. That would consist of placing a lead in the negative post, wrap a coil, thread the long lead all the way through the positive and wrap another coil on the same stretch of wire then terminating in the second negative. Not impossible, just ridiculous. What most people do for dual coils is 2 seperate coils (4 wire leads) which halves the resistance or wrap a single coil in parallel, that is 2 strands side by side wrapped around the mandrel, which has the same net result as a dual coil (this works best in 2 post atties with the coil dead center in a "Z" configuration).

 

[whiteowl84]

You wouldn't.
Hence me giving the corect parallel load he would get.
Sorry, I should have said configured instead of wired...
I have an electrical background and didn't learn parts of ohms law for building simple coils. My legs are leads. My posts are terminals.

Every wrap you place in front of another is in series.

 

[Train2]

And back to SIMPLE maybe: no it's the reverse. Two 0.5 ohm coils would net 0.25 ohms. HALF the resistance.

Because there are TWO places for the electricity to flow - more electricity/less "RESISTANCE". Make sense? Like two narrow pipes with water flowing, you'll get more water/less restriction than you would with only one.


Note - same logic explains why thicker wire has lower resistance than thin wire...

Hey! I am wondering this.. If I use 2 coils that are 0.5 ohm's each.. Will the resistance turn out to 1.0 or what? I don't understand.

 

[Taowulf]

Uhh... its a coil not a speaker box. Dunno why you'd "wire" a coil in series. That would consist of placing a lead in the negative post, wrap a coil, thread the long lead all the way through the positive and wrap another coil on the same stretch of wire then terminating in the second negative. Not impossible, just ridiculous. What most people do for dual coils is 2 seperate coils (4 wire leads) which halves the resistance or wrap a single coil in parallel, that is 2 strands side by side wrapped around the mandrel, which has the same net result as a dual coil (this works best in 2 post atties with the coil dead center in a "Z" configuration).

Never heard of the Rafale X then? 4 coils, two parallel pair of coils sharing a neutral post...in series.

 

[sonicbomb]

Never heard of the Rafale X then? 4 coils, two parallel pair of coils sharing a neutral post...in series.

That's not really helping the OP

 

[Taowulf]

That's not really helping the OP

True, but his question was answered a couple of times. I just felt the need to inform that series is possible, on the right atty.