When building dual coil, do you double the resistance measured on an ohm meter to get the resistance for the two coils or is it what you see is what you get?
Dual Coil
- Thread starter Hiram of Tyre
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If you're measuring the whole circuit it will be half of the two coils resistance in parallel and twice the individual coils in series.
Measuring the actual resistance of a coil with needle leads is hard without screwing up your coil. It is easy with alligator leads, but if you have two common/negative contacts/posts, you'll be deviding that coil in half for the equivalent resistance, double your measurement for series/one common contact rba. Be sure to have both the coils identical in measurements to ensure optimal performance.
Measuring the actual resistance of a coil with needle leads is hard without screwing up your coil. It is easy with alligator leads, but if you have two common/negative contacts/posts, you'll be deviding that coil in half for the equivalent resistance, double your measurement for series/one common contact rba. Be sure to have both the coils identical in measurements to ensure optimal performance.
Do you have only one common screw in the body? If so, yes, you'll be in series Resistance=x+y
Parallel: 3 ohm coils
1/resistance=1/3+1/3
1/resistance=2/3
1/resistance=1/1.5
Resistance=1.5 ohms
Differing coils parallel (don't want to be this different, just for reference) 2&6 ohm coils
1/resistance=1/2+1/6= 3/6+1/6
1/resistance=4/6= 2/3= 1/1.5
Resistance=1.5 ohms
Parallel: 3 ohm coils
1/resistance=1/3+1/3
1/resistance=2/3
1/resistance=1/1.5
Resistance=1.5 ohms
Differing coils parallel (don't want to be this different, just for reference) 2&6 ohm coils
1/resistance=1/2+1/6= 3/6+1/6
1/resistance=4/6= 2/3= 1/1.5
Resistance=1.5 ohms
I have one common center post. The coils are 3/4 wrap 30 gauge kanthal on 500 SS mesh.
you need to understand what a "Parallel Circuit" and a "Series Circuit" look like...
the bulbs represent the "load" when dealing with e-cigs the Coil is the load.
the pic on the right is the series circuit. the pic on the left is the parallel circuit.
Adding Parallel Branches Decreases Total Resistance... How Adding Parallel Branches Decreases Total Resistance
the bulbs represent the "load" when dealing with e-cigs the Coil is the load.
the pic on the right is the series circuit. the pic on the left is the parallel circuit.
Adding Parallel Branches Decreases Total Resistance... How Adding Parallel Branches Decreases Total Resistance
The center post is your positive contact. Flow starts there and ends at common..which in a genesis is the screw in the body beside the wick.
I don't know what you're wrapping with. 30gauge with a 1/16" wick is ~5-6 wraps per 1 Ohm on a micro coil. If you're not using micros, the length is better for determining resistance. 3" of 32gauge is 2.1 Ohms. I can't tell you length for 30, right now... if you haven't been helped out by the time I get back in town, I'll get you sorted out.
I don't know what you're wrapping with. 30gauge with a 1/16" wick is ~5-6 wraps per 1 Ohm on a micro coil. If you're not using micros, the length is better for determining resistance. 3" of 32gauge is 2.1 Ohms. I can't tell you length for 30, right now... if you haven't been helped out by the time I get back in town, I'll get you sorted out.
He's talking about 3/4 wrap. Which means nothing without the gauge and PV specs (voltage).
Dude. If you get a multi-meter or a PV that tells you the ohms, wrap one coil, measure the ohms. Add the 2nd. coil measure the ohms. You'll see and learn at the same time.
Like everyone said above. Two coils net out to less resistance than any one of them. Because there's more "paths" for the electricity to take. So less resistance. Yes?
However, use a single coil's value when determining the proper voltage. Then realize that the PV has to put out double the amps to maintain that voltage because there's two paths. So your PV has to support the amps too.
Another way to think about that same thing is that watts are divided across the two coils. So 14 watts = 7 watts per coil.
Dude. If you get a multi-meter or a PV that tells you the ohms, wrap one coil, measure the ohms. Add the 2nd. coil measure the ohms. You'll see and learn at the same time.
Like everyone said above. Two coils net out to less resistance than any one of them. Because there's more "paths" for the electricity to take. So less resistance. Yes?
However, use a single coil's value when determining the proper voltage. Then realize that the PV has to put out double the amps to maintain that voltage because there's two paths. So your PV has to support the amps too.
Another way to think about that same thing is that watts are divided across the two coils. So 14 watts = 7 watts per coil.
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