Definition
Resistance Ω
Resistance, measured in Ohms (Ω), is the measure of the difficulty of passing a Current through a Circuit / substance.
According to Ohm’s Law
Explanation
The more Resistance the less Electricity can pass through the Circuit. A Current will always take the path of least resistance.
It relates to Voltage and Current, probably because the voltage is the pressure on the electrons that is trying to push them through, and the current is the rate of flow, dividing the two gives you the resistance since the missing element in that equation is how much the substance / Circuit is resisting the flow of electrons, which is a long form way of saying the resistance. (maybe)
bing agrees
References