this post was submitted on 18 Mar 2024
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For the uneducated, what's wrong with it?
If a wire were a water stream:
Volt is water pressure (fast or slow stream)
Ampere how much water there is in the stream
Watt is pressure x amount
Ohm (resistance) is how much obstructions are in the stream
I never got the pipe analogy. Since liquid water can't be compressed, wouldn't the amperes be directly proportional to the volts and to the size of the pipe, assuming there are no air bubbles? Also, supposedly resistance only reduces current, but when I think of hair in a pipe, the pressure after the obstruction would also be lower (because pressure is directly proportional to the amount of water that flows)
Resistance in wire creates a voltage drop, just like hair in a water pipe creates a drop in available pressure.