Power,

Voltage and

Resistance
**Power**, measured in watts, can be calculated from the equation **P=VI**, or power=voltage times Amps (measures the current, full name Amperes, represented with an I in equations). If we use this relationship, along with **V=I² R** (see bellow), we can get:

**P= V²/R**

Voltage, measured in volts, represented by a v in equations, can be determined in the equation **V²=PR**

**Resistance,** measured in ohms, represented as a unit by the Greek symbol Omega and by an R in equations. Resistance is, surprisingly, the level of resistance of an object, meaning the resistance electricity faces when conducted through the object.

Using the following calculation, we can calculate resistance; **R=P²/I**

*The following equations can also be used to determine the above:*

`P=VI`

`P=I²R`

`P=I²R` (**P**eter **I**s a **S**quare **E**yed **R**abbit)

R=P²/I

R=VI

V=P/I