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OMG. Somebody needs to review what power is ..
Voltage is like water pressure.
Amperage is like water flow-rate.
Work = Force x Distance (simplified version)
Work = Voltage x Amperage
Power = Work / Time
Look back at what Work is (in terms of the equation). Work in electricity is expressed in Watts. Notice that the number of Watts is equal to the voltage times the amperage? What does this mean?
Power is dependent on the amount of work over a time period. Let's choose a time frame of 1 minute. Let's also choose a set amount of work, say .. 1000 Watts. Power in this case = 1000 Watt / min
Still follow?
Now let's look at the 1000 Watts of work vs amperage:
amperage (I) at 110v = work (W) 1000 Watts / voltage (E) 110 Volts
amperage (I) at 110v = 9.09 Amperes
amperage (I) at 220v = work (W) 1000 Watts / voltage (E) 220 Volts
amperage (I) at 220v = 4.54 Amperes
What does this mean? Well, it means that if your circut were on a 5 amp breaker .. only the 220v circut would not trip the breaker.
Does this mean that the 220v circut does more work? NO.
Still follow?
So what if the amperage is different? I'm still not convinced that 220v is not more efficient ..
Ohm's law: E = I * R (E is voltage, I is current, R is resistance)
So, let us assume two circuts with the same amperage (I) of 10 amps but the voltages mentioned above .. but this time we will evaluate the resistence in the circut:
R at 110v = E / I
R at 110v = 110 v / 10 amps
R at 110v = 11 ohms
R at 220v = E / I
R at 220v = 220 v / 10 amps
R at 220v = 22 ohms
Suprised that the curcut resistence is greater in 220v than 110v? What does this mean? .. well, it means that more electricity will generally be lost to the system in 220v circuts!
If you are still confused .. let me know what you don't understand and I will try to re-word everything ..
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rm -f /bin/laden
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