Question 1 of 10
What is the standard household voltage in the United States for lighter loads?
The standard household voltage for lighter loads in the US is 120V.
Question 2 of 10
What is the standard household voltage commonly used in the UK and EU?
The standard household voltage in the UK and EU is generally 230V.
Question 3 of 10
Which type of current was favored for long-distance power transmission due to the use of transformers?
AC was favored because transformers could step up or step down voltage, minimizing power loss over long distances.
Question 4 of 10
Which organization standardized 120V as the voltage in the US?
NEMA (National Electrical Manufacturers Association) standardized 120V in the US.
Question 5 of 10
In what decade was 120V officially declared as a standard in the US by the NEC?
The National Electrical Code (NEC) officially declared 120V as a standard voltage in 1968 and 1984.
Question 6 of 10
What is another voltage commonly available in US homes for higher loads?
240V split phase voltage is also commonly available for higher loads in the US.
Question 7 of 10
What were the key considerations in standardizing the household voltage in the US?
Safety, convenience, and practicality were the primary drivers.
Question 8 of 10
For what appliances is 240V generally used in US homes?
240V is primarily used for high-power appliances.
Question 9 of 10
Which countries listed in the article use a voltage level of 100V-127V?
Taiwan and Japan use a single phase AC voltage between 100V and 127V.
Question 10 of 10
Why did AC prevail over DC in the 'War of Currents'?
AC's ability to utilize transformers for voltage step-up/step-down facilitated efficient long-distance transmission.
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