Is an object damaged if given a voltage double than that it needs?

Even if only for a few seconds?





I'm not sure of the strength of a transformer and I have no way of finding out except trying it.Is an object damaged if given a voltage double than that it needs?
It really depends upon the device.


I work with some telco equipment that can take 90 to 240 VAC.


The lower the voltage the higher the current draw to keep the Wattage the same. Let us know what it is and someone may have a manual.





If it is a wall wart transformer that you are looking at, it should have imprinted on it in small print what the output voltage and current capacity is. It should read something like 9VDC @ 300mA. You can confirm the voltage but not the current capacity with a cheap voltmeter. The device you are plugging this into may not state what it requires. You may need to refer to a manual or look the information up on line.


Again, if you let us know what it is you are trying we might be able to help.





Edit:


Since it is a cheap FM reciever, chances are you'll fry it and it would be no good. Set it aside until you can apply the proper voltage. Or better yet, take it into a Radio Shack or similar electronics store. If it is 110 VAC device in a 220/240 VAC country, ask to try it out on a voltage adapter. If it takes a DC input then ask to see it work on one of their multi voltage DC chargers. This will allow you to verify that the unit is functional, and it will let you know how much it will cost to be able to use it where you are. It may be more than the radio is worth.Is an object damaged if given a voltage double than that it needs?
most items designed for a specific voltage will only work on that voltage plus or minus 10%......double the design voltage usually burns up the power supply or the product itself.....i've seen this for myself when an electrician accidently connects the wrong voltage to a circuit [such as 240v instead of 120v...or 480v instead of 240v]....or when a utility transformer goes bad or in connected wrong....,...dan
Well, I had a dual voltage travel hairdryer, set it to 110 v for USA holiday, came home to UK and forget to change it back to 240 v and poof! - it died the death. It will not hurt a 240 v appliance to operate at 110 v (will just take longer to heat and motor will be slower) but the reverse way it kills them stone dead.
Dan the man has your answer. Unless it's fused, and most small appliances and electronics are not, whatever you plug into double voltage will run at warp speed for about five seconds, then you can throw it in the garbage.