- #1
Erazman
- 66
- 0
This has been racking my brain for the last week.. its about current..i keep trying to think of a circuit as a water hose, with voltage being the pressure, current being the flow, resistance being a kink in the hose, etc...
Ohm's Law
Current = Voltage / Resistance
This is common sense...
The higher the voltage, the higher the current
Extremely low voltage ---> extremely small current
that i can live with...
Now, the WATTS Law
Watts = Voltage * Current
or
Current = Watts / Voltage
In this case, current is inversely porportionate to the Voltage.
WHY is it that when a power load is added to a circuit, a higher voltage will cause LESS current to be drawn?? To me that doesn't make sense when i try to picture it in my mind..I took this to the extreme..
Current = 100W / 0.01V
Current = 10,000 AMPS
wow, 10,000 amps is quite abit of current considering i hardly have any voltage.
we could take this more and more extreme.. hooking up a 2v small cell to a 100,000W power load.. there's 50,000 AMPS.. from almost nothing.
I thought about this for awhile, and my only reasoning is that AMPS isn't necessarily the amount of current, but the SPEED of it. If i remember correctly, amperage is the amount of electrons to pass a point in a certain amount of time. Is this right? Even so, your telling me a 10000000000000000000000000000000000 WATT power load will suck electrons from a .00000000000000000000000000001 volt source at 999999999999 times the speed of light? I just don't see that happening. LOL.
even Ohm's Law seems a little wierd. Once you have 0.000001 resistance, your amperage is in the millions.
There has to be a simple explanation to these outrageous numbers!
Ohm's Law
Current = Voltage / Resistance
This is common sense...
The higher the voltage, the higher the current
Extremely low voltage ---> extremely small current
that i can live with...
Now, the WATTS Law
Watts = Voltage * Current
or
Current = Watts / Voltage
In this case, current is inversely porportionate to the Voltage.
WHY is it that when a power load is added to a circuit, a higher voltage will cause LESS current to be drawn?? To me that doesn't make sense when i try to picture it in my mind..I took this to the extreme..
Current = 100W / 0.01V
Current = 10,000 AMPS
wow, 10,000 amps is quite abit of current considering i hardly have any voltage.
we could take this more and more extreme.. hooking up a 2v small cell to a 100,000W power load.. there's 50,000 AMPS.. from almost nothing.
I thought about this for awhile, and my only reasoning is that AMPS isn't necessarily the amount of current, but the SPEED of it. If i remember correctly, amperage is the amount of electrons to pass a point in a certain amount of time. Is this right? Even so, your telling me a 10000000000000000000000000000000000 WATT power load will suck electrons from a .00000000000000000000000000001 volt source at 999999999999 times the speed of light? I just don't see that happening. LOL.
even Ohm's Law seems a little wierd. Once you have 0.000001 resistance, your amperage is in the millions.
There has to be a simple explanation to these outrageous numbers!