What is the difference between 110 volt and 220 volt electrical outlets?
In terms of power usage. If 110 volts is more efficient, why do we use 220?
Does it make a difference in the performance of the item plugged in?
In terms of power usage. If 110 volts is more efficient, why do we use 220?
Does it make a difference in the performance of the item plugged in?
Electro
Favorite Answer
Power Usage : No difference as P = V*I
decrease/increase in voltage will result in increase/decrease in current, but power will still remain the same.
110V is equally efficient to 220V as long the frequency is same.
If the current supplied on both the 110V and 220V are same then the 220 is better.. for example a kettle on 220V n 5Amps will boil faster as overall power goes up compare to 110V n 5Amps.
Anonymous
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It is easy to tell a 220/240 amp outlet from a 110/120 amp outlet the 240 will usually have only one socket. It is also much larger sometimes even the plug is different shaped. If you have a large appliance outlet you will know just by looking. Now the problem you may have is if the the wall heater has a different kind of plug. Unlike 110/120 amp where all plugs will go in, in 220/240 amp the plugs come in different styles. In all cases change the outlet, not the plug on the heater. If your outlet looks like an ordinary outlet it's for 110 amp. Good Luck. Just looked up no you can't have a 110 and 220 on the same circuit. Or at least it would be hard for me to believe anyone in their right mind would leave two hot wires from a double poled circuit breaker loose, something I've never seen done, but it would require electrical work in any case. Just coming back with what if, they left the one double poled set of wires disconnected I guess that would work 110, but would still require electrical work.
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110 Vs 220
rickson
110 volts isn't more efficient.
Take a 2000 watt kettle for heating water.
At 110 volts it would take 18.18 Amps. At 220 volts it would take 9.09 Amps.
If they both had the same sort of wire feeding the socket, which one could give more power out?
If the wire could handle 20 amps, the outlet could handle 4400 watts at 220 volts and 2200 watts at 110 volts.
In the American system, you would have to touch both live wires of a 220 volt outlet to get 220 volts across you. This is because the 220 volt line is really 110 volts either side of neutral which is normally earthed. If you only touch one side and earth, you only get 110 volts across you. This is still very dangerous but not as deadly as 220 volts on its own.
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110 Volts