# Ohm’s Law Wheel

Ohm’s Wheel is a collection of 12 different formulas which helps to calculate Voltage, Current, Power and Resistance.

Let’s take a look at Ohm’s wheel:

We can use the wheel to extract 12 formulas (3 for each voltage, current, power, and resistance):

- V = IR
- V = P/I
- V = (P.R)
^{1/2} - P = VI
- P = V
^{2}/R - P = I
^{2}R - I = P/V
- I = (P/R)
^{1/2} - I = V/R
- R = V/I
- R = P/I
^{2} - R = V
^{2}/P

## What’s the significance of Wheel?

The Ohm’s wheel is just visual representation of Ohm’s formulas. It can be used to calculate different parameters.