Ohm S Law Power Wheel
The ohm s law wheel represents all possible relationships between power p resistance r current i and voltage v.
Ohm s law power wheel. Ohm s law formula wheel. To use the wheel select the wanted quantity from the inner circle of the wheel and then the appropriate formula in that quadrant based on what you know about the electrical current you are working with. Joule s law states that. 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. This is essentially what the calculator does and is just a representation of the algebraic manipulation of the equations above. Now we re getting somewhere. P v x i.
This formula wheel is a combination of both ohm s law and the pie formula. P is power measured in watts. Below is a formula wheel for ohm s law relationships between p i v and r.