It is commonly assumed that American household appliances operate on 120 volts, but it is economically advantageous to operate larger heating devices, such as electric kitchen ranges and high-Btu air conditioners, on a higher voltage, namely, ____ V.
A)180
B)220
C)240
D)250

Question

Quizplus · Accepted Answer

Larger heating devices, such as electric kitchen ranges and high-Btu air conditioners, are typically operated on 240 volts because it allows for more efficient energy use and reduces the electrical current required, which can lower the cost of wiring and electricity.

It Is Commonly Assumed That American Household Appliances Operate on 120