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Household electricity in the United States is quoted as an rms voltage of:
A240 V
B120 V
C170 V
D220 V
Answer & Solution
Correct answer: B. 120 V
1. Standard practice quotes rms rather than peak values.
2. That is the figure appliances are designed around.
3. It is 120 volts AC.
_Source: OpenStax College Physics 2e, Chapter 20, Electric Current, Resistance, and Ohm's Law._
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