Ohm's Law/Watt's Law Calculator

Menus
   For items from the Edit and Options menus please see the Interface section of this manual.


Use
   As the name implies the Ohm's Law/Watt's Law Calculator integrates the calculations of both Ohm's Law (V=IR) and Watt's Law (P=VI) as well as all 10 possible permutations. (You may be familiar with the portrayal of all 12 of these permutations being displayed as the "Whiz Wheel" or "Formula Wheel".)

   As anyone familiar with these electrical laws is aware, if any two values are known then any other value can be found. In the same way, to use this calculator form select any two known values by checking the boxes to their right. (If two fields are already checked you will first have to uncheck one.) For convenience any time two boxes are checked the two formulas corresponding to the two laws are displayed at the top of the form.

   Once the appropriate two fields are selected you can fill in their values.

   Tap the Calc button to see the values of the unknown parameters.