Question

A foreign exchange student brought his desktop computer from his home in Europe to the United States. He brought a power adapter so that the power cord would plug into the power outlet. He tried turning on his computer, but it wouldn't power on. What is likely the problem? What should you warn him about when he returns home at the end of the year?

Answer 1

The problem is with the power adapter's operating voltage and frequency.

In Europe, the electrical appliances run on 220 Volts and 50 Hz and therefore all electrical and electronic components sold in Europe are manufactured according to their electrical system. For example, a desktop computer manufactured to run on 220 V and 50 Hz will only power on when the said voltage (220 V) and frequency (50 Hz) is supplied to it.

In the United States, they have different electrical systems which supply 110-120 V on 60 Hz, therefore, electrical appliances designed to run on 220 Volts and 50 Hz will not work in the US. That is why the student's desktop computer wouldn't power on.

When the student returns home at the end of the year he must check, before visiting any country, for the country's electrical supply voltage, frequency, and plug types.