If you mean - can you run a 220v device on 120v where the 220v device needs that level of voltage to operate correctly then the answer is no.
Even disregarding the frequency difference which some devices aren't affected by, the voltage difference is too great.
Some devices these days, such as phone chargers, laptop power supply units etc will run happily on a voltage range from 100v up to 240v (read the label first) but they are the exception.
The question is somewhat ambiguous and needs more information.
Depends. Some smaller stuff can usually run on both, in which case it will be printed on them. If it isn't, you can't run a 220v item on 110v.
Not really because motors are designed to run at either 50 or 60 Hz and the wrong frequency might cause them to malfunction or overheat.
It would involve some electronics work but it could be done. Might add that it could be more expensive than just buying the proper power supply. Use Use 220V 60hz motor to run 110V 50hz Generator.
Answer Possibly. The device will not be harmed, but the fan motors and compressor will run slower making it operate below its intended levels. It will not work as wekk on 50hz as it did on 60hz, but it should work. If it has a ice maker with a motorized timer, that will not work correctly. The timer will turn at a different speed altering the timing.Another AnswerI ran my Canadian 120-V / 60-Hz fridge-freezer for years in the UK, using a 230:120-V transformer at 50 Hz.
If all the components are rated to 220V, yes. Keep in mind that if the appliance was designed for 110V it may arc if 220 is run through it. If you don't know the device can handle 220V, don't run it at 220V. Chances are it was manufactured cleaply and cannot handle the extra voltage.
No
Yes no problem the transformer should run a little cooler as well.
Depends. Some smaller stuff can usually run on both, in which case it will be printed on them. If it isn't, you can't run a 220v item on 110v.
The voltage isn't a problem, you can run 220 from your house and use that to run a European appliance, the problem is whether the appliance is dependant on line HZ. European is 50HZ and US is 60HZ. If the appliance specifies 220/50HZ, it will probably give you trouble here. If it says 220V/50 or 60HZ
Unless the computer has a switch on the back allowing you to use both dual voltages and frequencies, the computers internal clock will run faster.
Not really because motors are designed to run at either 50 or 60 Hz and the wrong frequency might cause them to malfunction or overheat.
The compressor may run slightly faster, but little else. You should get away with it without damage. Any timer circuits may be inaccurate.
It would involve some electronics work but it could be done. Might add that it could be more expensive than just buying the proper power supply. Use Use 220V 60hz motor to run 110V 50hz Generator.
Yes, purchase a step-down transformer.
Answer Possibly. The device will not be harmed, but the fan motors and compressor will run slower making it operate below its intended levels. It will not work as wekk on 50hz as it did on 60hz, but it should work. If it has a ice maker with a motorized timer, that will not work correctly. The timer will turn at a different speed altering the timing.Another AnswerI ran my Canadian 120-V / 60-Hz fridge-freezer for years in the UK, using a 230:120-V transformer at 50 Hz.
This is hard to say as it is up to the manufacture as to whether it is compatible. on the specification plate it should state the operating frequencies. if i had to say yes or no and the appliance is the latest model i would say yes it is compatible as these days manufactures allow for those tolerances.
You would need a <a href="http://en.wikipedia.org/wiki/Frequency_changer">freqency convertor</a>. This would probably cost you more (if you consider both initall cost of the convertor and in the long run due to inefficency) than a fridge designed to work in the country you're using it in.