# Definition
A volt is defined as the difference in charge between two different points

Expressed in SI units, a volt is:
$$ V = \frac{kg \cdot m^2 \cdot s^{-3}}{A} $$
# Characteristics
- Voltage is the same in parallel
- The algebraic sum of all voltages in a loop must equal zero. A loop is defined as a closed path through a circuit that encounters no node more than once.

# Equations
-  $V = \frac{I (A)}{R (\Omega)}$
- $V = \sqrt{ P (W) \cdot R (\Omega)}$
- $V = \frac{P (W)}{I (A)}$