AC power is supplied by the wall sockets in our homes, but there are different v

Question

AC power is supplied by the wall sockets in our homes, but there are different voltages and frequencies for this power in different parts of the world. That is why you need to have plug converters to use your electrical equipment when traveling abroad. The following website has a comprehensive table of the specifications for AC power in several countries: http://www.kropla.com/electric2.htm

1) What are the approximate rms voltages of the AC power used in the United States and in Europe?

2) What are the frequencies in Hz (or number of times that the current switches direction per second) of the AC power used in the United States and in Europe?

Explanation / Answer

a)

Voltage

United states=120 Volts Rms

Europe=220 Volts Rms

b)

frequecy

United states =60 Hz

Europe=50 Hz

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