How do you the best possible hit of vapor from your e-cig? It’s all about the Ohms. And anyone who has taken the leap from entry-level vaping starter kit to any type of Advanced Personal Vaporizer will need to calculate their Ohm units correctly for the optimum vape, and that means knowledge to Understanding Ohm's Law.

What is Ohm’s Law?

Understanding Ohm's Law - Ohm's Law Triange
In a nutshell? Current equals Voltage divided by Resistance.

In order to get the most out of your APV, consult the Ohm’s Law Triangle. As it implies, this allows you to make three separate calculations. If you would like the best possible current to be generated, then divide your voltage by your resistance. If you’d like an ideal resistance then divide your voltage by the current that you’re going to use. For the best possible voltage, divide the current by the resistance. Its that simple. If, however, you cringe at the thought of mental mathematics, there are now plenty of online sites and Ohm’s Law calculator appsavailable for phone and tablet.

V = Voltage
I – Current
R = Resistance
W – Wattage

Want to really get the low-down on your Ohms? A home Ohms tester is the perfect solution for anyone wanting to test the resistance of an Atomizer or a Clearomizer from the comfort of their own home.

A Few Ohm Truths

Many vapers make the mistake of thinking that their battery is 3.7 volts. It is an understandable mistake to make, seeing that it is written right there on the battery. When fully charged your battery is actually 4.2 volts. So, when entering voltage into your Ohm’s Law calculator, make sure you have 4.2 volts. (We know the Ohm of our coil because have have an Ohms reader – 0.2, for example.)

After hitting calculate, you’ll see that you’re drawing 21 amps and 88 watts. If you’re using a Samsung or Sony VTC4 or VTC5 30 amp battery, for example, then you are well within your limit – your battery is going to be safe and you are not going to blow yourself up. If you are not quite sure what you are doing then stay above 0.1 Ohms.

ohm's law

Ride The Sub-Way

Understanding Ohm's Law comes in very handy for you cloud-chasers out there – that is, anyone who likes big, billowy exhalations of vapor. Bigger vapor clouds means thicker e-juice, ideally 100% vegetable glycerin rather than the thinner propylene glycol or a 50/50 mix of both. This is where a sub-ohm tank comes in handy. These tanks operate at a resistance of anything under 1 ohm. The result is low resistance and a high temperature that creates thick clouds of vapor.


Posted by: Mark Knight