A question about ohms/volts

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Baditude

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Besides being a user preference, the resistance anyone uses depends largely upon what voltage you are using.

Single voltage batteries (non-variable voltage) use a voltage of 3.7 volts. Either low resistance (1.5 - 2.0 ohm) or standard resistance (2.0 - 2.5 ohm) works best. LR will provide a warmer vape; SR will provide a cooler vape.

Variable voltage batteries will have a voltage range between 3.4 volts to 5/6 volts. Here a 3.0 ohm resistance works best.


 

pianman6954

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Yes that is the wattage, best to note when talking coils this is only a general guideline. Thicker gauge kanthal/nichrome will be lower resistance for the same wraps but needs more power to become hot as well due to the larger suface area and metal content. It all comes down to preference as already mentioned, I for one need low impedance coils with pre-built tanks and clearos.
 

The Ocelot

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Yes that is the wattage, best to note when talking coils this is only a general guideline. Thicker gauge kanthal/nichrome will be lower resistance for the same wraps but needs more power to become hot as well due to the larger suface area and metal content. It all comes down to preference as already mentioned, I for one need low impedance coils with pre-built tanks and clearos.

Oh. Oops. The whole box. Lol!

ETA: Don't you think your answer was a bit advanced for the OP's question?
 
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suspectK

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pianman6954:11377719 said:
Yes that is the wattage, best to note when talking coils this is only a general guideline. Thicker gauge kanthal/nichrome will be lower resistance for the same wraps but needs more power to become hot as well due to the larger suface area and metal content. It all comes down to preference as already mentioned, I for one need low impedance coils with pre-built tanks and clearos.

Impendance isn't a term associated with DC circuits... There is no phase angle with direct current. Therefore, your impedance will always be zero.

Get things right if you're wanting to try to blow the minds of new comers or non-tech savvy people.

Edit-yeah, being a .........not thinking..and so forth.. no phase angle with direct current, therefore, your impendance will always be at a 0-frequency. Sorry pianman:)
 
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Baditude

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So what exactly does the number inside the boxes mean? Is it the wattage?
Yes, the number inside the blocks represents "watts". The numbers at the top outside the boxes is "voltage". The numbers to the left of the boxes is "ohms" or "resistance".

Pretty much a representation of Ohm's Law.
 

FearTX

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Interesting observation.

Not that I am and expert at electronics, my forte is electromechanical. I usually refrain from discussions that go beyond relays, contactors, VFDs,and HVAC.

I did spazz out on the kid behind the counter at a B&M the other day when he tried to tell me that you could what what voltage AND what wattage you wanted your PV to run at... He finally understood that stepping the voltage by .1 got you a finer control on wattage than stepping the wattage by .5

It took some paper and a couple of runs through P=EI and E=IR (Watt's and Ohm's Law) more commonly know as just Ohm's Law. but he finally got it...

ohms-watts_law.jpg
 

undeadninja125

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Not that I am and expert at electronics, my forte is electromechanical. I usually refrain from discussions that go beyond relays, contactors, VFDs,and HVAC.

I did spazz out on the kid behind the counter at a B&M the other day when he tried to tell me that you could what what voltage AND what wattage you wanted your PV to run at... He finally understood that stepping the voltage by .1 got you a finer control on wattage than stepping the wattage by .5

It took some paper and a couple of runs through P=EI and E=IR (Watt's and Ohm's Law) more commonly know as just Ohm's Law. but he finally got it...

ohms-watts_law.jpg

I've heard so many people refer to B&M. what is it?

Sent from my Galaxy S 4
 
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