# Current

Written by Jerry Ratzlaff on . Posted in Electrical Engineering

Current $$\:(I)\:$$ is the rate of flow of electricity in a circuit, measured in amperes.  Amp is a unit of current.  One ampere (amp) is the current flowing through one ohm of resistance at one volt potential.

## Current (Amp) formulas

 $$\large{ Amps = \frac{Volts}{Ohms} = I = \frac{V}{R} }$$ $$\large{ Amps = \frac{Watts}{Volts} = I = \frac{P}{V} }$$ $$\large{ Amps = \sqrt{\frac{Watts}{Ohms}} = I = \sqrt{\frac{P}{R}} }$$

### Where:

$$\large{ I }$$ = current

$$\large{ P }$$ = power

$$\large{ R }$$ = resistance

$$\large{ V }$$ = volt