Ohm's law (named after the German physicist Georg Ohm) defines the relationship between Voltage, Current and Resistance.
V = I x R
V is the electrical potential (voltage), measured in volts (V),
I is the current, measured in Amperes (Amps/A), and
R is the resistance, measured in Ohms (Ω).
Joule's law states that:
P = V x I
P is Power, measured in Watts.
The combination of Ohm's law and Joule's law gives us 12 formulas where 2 of the 4 variables are known. The wheel below is a handy tool and memory jogger. To use it, simply choose the quadrant corresponding to the variable you want to calculate, then select the segment corresponding to the variables that you know the values of.
It can be applied to any smooth surface, comes in three sizes and two colors. Contact us if you require custom size or color.
Proudly Made in the USA.
Buyers are responsible for any customs and import taxes that may apply. I'm not responsible for delays due to customs.
Just contact me within: 14 days of delivery
Ship items back to me within: 30 days of delivery
But please contact me if you have any problems with your order.
Because of the nature of these items, unless they arrive damaged or defective, I can't accept returns for:
Buyers are responsible for return shipping costs. If the item is not returned in its original condition, the buyer is responsible for any loss in value.