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Is 240V cheaper than 120V

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โˆ™ 2006-03-29 03:17:42

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Cost is based on watts not voltage...pkazsr

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โˆ™ 2006-03-29 03:17:42
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Q: Is 240V cheaper than 120V
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240V European and 120V US does one have an advantage over the other?

Generally 220v anything works easier or with less effort so can be cheaper to run. Appliances that run off 240V draw less current than 120V appliances so lighter wiring and fixtures can be used. However, 240V is more prone to arcing than 120V. Also, 240V is more likely to blow you away than 120V, whereas 120V is more likely to "grab" (Cause your muscles to involuntarily contract, i.e. making your hand grab a conductor) you. Also the US uses 120V because Edison originally used 100V. It was upped over the years to cope with demand. The US also has 240V in residential service for large appliances like ovens and dryers.


Why do you have appliances at 240v rather than have all be 120v?

Less current is needed


Can I use a 120v rated bulb in a 240v socket on a 120v circuit?

yes


What takes less energy 120v or 240v?

120V takes less energy


Can 240V washer run on 120V outlet?

No.


Can a 120V Generator run 240V machines?

No


What is the normal voltage of house clectricity in the US?

120v or 240v. 120v is one leg of the main panel, and 240 is two legs of the main panel. 120v is lights,outlets. 240v, dryer,stove.


Can you run your neon sign of 120v 50hz 60hz 0.6a 7.5kv 30mA in an Australian 240v power outlet?

No. The neon sign is fed by a step-up transformer. Primary side 120V, secondary side 7500V. If you applied 240 to the primary side you would get 15000 volts on the neon tube. A flash over and then nothing. If you can find a transformer from 120V to 240V or 240V to 120V then you are good to go. Connect 240V to 240V side and you will get 120V out the other, connect the 120V side to the neon sign and you should have light. Transformer should be at least 100va. This will give you an output of .83 amps at 120V


Why are you not getting 240v between the two hot wires?

Because they are "in-phase". In order to get 240v, you need two 120v Alternating Current lines that are 180° out of phase, that is, opposite phases. Only when one line is +120v and the other -120v will you see 240v between the wires.


How can you convert a 240v clothes dryer to 120v can you use to different outlettes?

You cannot use 2-120v outlets to power a 240v dryer. You can convert a 240v dryer outlet to power 2-120v outlets if they are supplied with a neutral. This requires a competent electrician. Do not do this yourself.


You are building a new house and trying to decide between 120v and 240v which is better More practical?

In the US, both 120v and 240v will be needed for your home, as different appliances need different voltages. Your TV needs 120V, while your electric dryer and stove will need a 120V/240V supply. If you have an electric water heater, or central AC unit, they will need a 240V supply.


In terms of electricity is 240 volts cheaper than 120?

Your electric bill is computed in kilowatt-hours. This is a measure of power over a period of time, which is a combination of volts and amps. Amperage at 240v would be half that of 120v, but obviously the voltage is double. So the net watts are the same. As a result, your net kilowatt-hours will be the same whether you use 120v or 240v.

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