120v is the standard for all of North America, whereas 240v is standard for the rest of the world.
In the US: 120/240V. Newer homes generally have a 200 amp service.
In the United States most homes are wired with both 240V AND 120 V. The question becomes, why, in India is there ONLY 230 V? Another difference; in The US and Canada, we use 60 Hz, while in most of Europe they use 50 Hz.
A machine that operates on 120/240v 3 phase power requires a power source that can provide both 120 volts and 240 volts of electricity in a three-phase configuration. This means the machine needs a power supply that can deliver three separate electrical currents, each at 120 volts and 240 volts, to operate effectively.
The voltage in North America can be as low as 110 and as high as 125 volts. The average is about 115 to 117 volts. <><><>><> House voltage in the US is generally 120v line to neutral and 240v line to line. It is referred to as a "120/240v single phase service." Actual voltage can be as low as 110/220 or as high as 125/250.
Answer for USA, Canada and countries using similar 60Hz household electricity servicesSome appliances need two power leads, 120V for the washer and a separate 240V for the dryer. Others need only a single 120/240V service. Check what is available at your local electrical goods stores or from online websites.
china uses 220-240v, so any 110v appliances will need a converter, which can also be bought in china...AnswerChina uses 220 V @ 50 Hz, plugs A, I, or G (vs the US and Canada 120 V @ 60 Hz).
If your electrical service is only 120 volts you have a problem. There is no way that you can connect a 240 volt cook top to that service. You have two options, one is to upgrade to a new 120/240 volt electrical service. Your other option is to find a 120 volt electrical cook top.
Typically, most adappters are rated between 120 and 240V ... it should say on the power adapter itself
120
No. There are no "adaptors". To get 240V from a 120v supply you use a 120-240V step up transformer. <><><> Clothes dryers, water heaters and and other high-power 240 volt appliances cannot be run on a transformer from a 120 volt circuit. They must be powered from a separate branch circuit that has the right size breakers, cable and socket outlet to suit the appliance.
To calculate the operating cost, you need to know the electricity rate in your area. Once you have that information, you can use the formulas below: Operating cost = (Watts / 1000) x Hours of use x Electricity rate For the 120V 1500W appliance: Operating cost = (1500 / 1000) x Hours of use x Electricity rate For the 240V 1000W appliance: Operating cost = (1000 / 1000) x Hours of use x Electricity rate
120 miles