Ohm's Law states that the current passing between two points is directly proportional to the potential difference between those points. (The constant of proportionality is defined as the resistance between those points).
Ohm's Law defines the relationships between (P) power, (E) voltage, (I) current, and (R) resistance. One ohm is the resistance value through which one volt will maintain a current of one ampere.
Haven't a scooby what that means, but if it helps, hey my living will not have been in vain.