Explaining Ohms
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The ohms are the measurement of the electrical resistance of the coil. This is important to know, because it directly influences the amp draw from the battery; lower resistance will mean greater amp draw, your battery will run down faster.
Andria
Andria
http://www.discountvapers.com/resistances/
no easy easy way to explain without the others.. (voltage and wattage).. ohms law.
no easy easy way to explain without the others.. (voltage and wattage).. ohms law.
Depends on what you like... AND on what your battery can handle. Batteries are rated with maximum amp draw limit. You should never exceed or get real close to this limit. Going to a lower resistance will mean a warmer vape. It can increase the vapor production. It can also change the flavor, for better or worse.
Ohm's Law as a Predictor of Current
The Ohm's law equation can be rearranged and expressed as
I= V/R
I is Impedence (amps), V is Volts, and R is Resistance
As an equation, this serves as an algebraic recipe for calculating the current if the electric potential difference and the resistance are known. Yet while this equation serves as a powerful recipe for problem solving, it is much more than that. This equation indicates the two variables that would affect the amount of current in a circuit. The current in a circuit is directly proportional to the electric potential difference impressed across its ends and inversely proportional to the total resistance offered by the external circuit. The greater the battery voltage (i.e., electric potential difference), the greater the current. And the greater the resistance, the less the current. Charge flows at the greatest rates when the battery voltage is increased and the resistance is decreased. In fact, a twofold increase in the battery voltage would lead to a twofold increase in the current (if all other factors are kept equal). And an increase in the resistance of the load by a factor of two would cause the current to decrease by a factor of two to one-half its original value.
You can use Battery drain | Steam Engine | free vaping calculators to help determine what your battery/VV/VW can handle. These are not hard, set in stone numbers but they can be used as a guideline.
Ohm's Law as a Predictor of Current
The Ohm's law equation can be rearranged and expressed as
I= V/R
I is Impedence (amps), V is Volts, and R is Resistance
As an equation, this serves as an algebraic recipe for calculating the current if the electric potential difference and the resistance are known. Yet while this equation serves as a powerful recipe for problem solving, it is much more than that. This equation indicates the two variables that would affect the amount of current in a circuit. The current in a circuit is directly proportional to the electric potential difference impressed across its ends and inversely proportional to the total resistance offered by the external circuit. The greater the battery voltage (i.e., electric potential difference), the greater the current. And the greater the resistance, the less the current. Charge flows at the greatest rates when the battery voltage is increased and the resistance is decreased. In fact, a twofold increase in the battery voltage would lead to a twofold increase in the current (if all other factors are kept equal). And an increase in the resistance of the load by a factor of two would cause the current to decrease by a factor of two to one-half its original value.
You can use Battery drain | Steam Engine | free vaping calculators to help determine what your battery/VV/VW can handle. These are not hard, set in stone numbers but they can be used as a guideline.
With a fixed battery voltage, lower resistance will give you a hotter vape, and usually more vapor. Too low and it will start burning the juice.
Since a lower-ohm coil vaporizes liquid more quickly, it is also important that the wick be able to keep up, and supply enough liquid to keep the coil from drying out.
It also depends on the juice; some juices are better at higher heat (lower resistance) while some are best with lower heat.
If you have a VV or VW mod, the coil resistance plays less of an effect, since you can adjust your battery for a warmer/fuller or cooler vape to compensate.
Since a lower-ohm coil vaporizes liquid more quickly, it is also important that the wick be able to keep up, and supply enough liquid to keep the coil from drying out.
It also depends on the juice; some juices are better at higher heat (lower resistance) while some are best with lower heat.
If you have a VV or VW mod, the coil resistance plays less of an effect, since you can adjust your battery for a warmer/fuller or cooler vape to compensate.
Those devices are often said to function best with a coil resistance of around 1.8 ohms.
Stay in that area, + or - a tenth of an ohm or so, and you need not concern yourself with much else.
Those devices are very safe and will not fire dangerously low-ohm coils.
All of the above is true, but the easiest to understand explanation of how resistance is related to vaping is the water analogy.
Ohms is a measure of the resistance of a conductor (your coil) to an electrical current flow.
Water can experience resistance to flow depending on what it's flowing through. A large hose will allow more volume of water to flow through easily at low pressure. A smaller hose will allow a smaller volume of water to flow through. For more volume, you must increase the pressure. For a given amount of water flow, you change the pressure by changing the size of the hose. If you have a spigot with an adjustable valve, you can vary the pressure in the hose by turning the handle on the spigot and increasing the volume of the water.
In an ecig, a high resistance coil will allow voltage to flow easily without creating a lot of heat. As you lower the resistance for a given voltage, the heat goes up as more amperage/wattage flows through a lower resistance.
A variable voltage or wattage mod changes the heat output of a coil by applying more or less voltage to that coil.
A 2 ohm coil may produce 6.8 watts at 3.7 volts. That same 3.7v level through a 1 ohm coil will produce 13.7 watts. You can produce the same 13.7 watts from a 2 ohm coil by turning up the voltage to 5.2v.
Plug in the voltage and resistance numbers in the ohm's law calculator link below to see how different values relate to each other.
Ohm's Law Calculator
Ohms is a measure of the resistance of a conductor (your coil) to an electrical current flow.
Water can experience resistance to flow depending on what it's flowing through. A large hose will allow more volume of water to flow through easily at low pressure. A smaller hose will allow a smaller volume of water to flow through. For more volume, you must increase the pressure. For a given amount of water flow, you change the pressure by changing the size of the hose. If you have a spigot with an adjustable valve, you can vary the pressure in the hose by turning the handle on the spigot and increasing the volume of the water.
In an ecig, a high resistance coil will allow voltage to flow easily without creating a lot of heat. As you lower the resistance for a given voltage, the heat goes up as more amperage/wattage flows through a lower resistance.
A variable voltage or wattage mod changes the heat output of a coil by applying more or less voltage to that coil.
A 2 ohm coil may produce 6.8 watts at 3.7 volts. That same 3.7v level through a 1 ohm coil will produce 13.7 watts. You can produce the same 13.7 watts from a 2 ohm coil by turning up the voltage to 5.2v.
Plug in the voltage and resistance numbers in the ohm's law calculator link below to see how different values relate to each other.
Ohm's Law Calculator
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