Resistors are electronic components manufactured for specific purposes. You usually get voltages from batteries, the wall outlets, and other similar places.This holds when you have a voltage and a resistance (usually a resistor), but as we learn about other components and power sources, this law does not typically apply to them.That is uncommon so we’ll assume resistors are linear unless explicitly stated otherwise. Not only does this mean that the relationship is a straight line, but if you are dealing with something that is non-linear, where resistance changes depending on the voltage, this equation does not apply.
If you increase the size of the pipe by decreasing the resistance, more current will flow.
As you go to a higher potential, more current will want to flow. Or, the height of the water divided by the size of the pipe, gives you the water flow.
