If it's a small one used for things like laptops then it would just classified as office expenditure and not a fixed asset. If however it is a large transformer with high value then it may well be.
This type of a transformer is known as a step up transformer.
Yes no problem the transformer should run a little cooler as well.
it can be done at the electrical panel with out a transformer. always have an electrician do it.
yes, but you need a transformer to convert it,
of course. go to the market and buy a transformer. It will convert a 110V supply to a 220V supply.
The current would rise until it blows the fuse or breaker and that would produce an arc as the transformer's inductance tries to maintain the current.
By using a Variac Transformer
Use a transformer to lower from 220 to 110V.
Best way is to use a step up transformer to step up the voltage from 110V to 220V
120V appliance will not work on 220V. Use an instrument transformer or voltage regulator to adjust the high voltage to the desired level.
If it is AC, a transformer. If it is DC, a motor generator.
The online retailer Amazon currently has an 'Automatic Transformer Adapter 500W 110v/220v 220v/110v' on sale for $38.89. That's 51% lower than the list price of $79.99 and that's before the free shipping!