17
Dec
An electrical transformer is a device which either changes the voltage up or pushes it down to a desired value. In the US, the voltage pushed across the plug points is an 110v compared to many parts of the world where the voltage is 220v. If you own devices such as a mobile phone, or a laptop, they will not work if you travel to US and try their power outlets. If you try to use an outlet which is rated with a higher voltage, you will end up damaging your electrical goods and also might get electrocuted. 220v to…