The main power that is supplied to industries in the United States is three phase (3F), ____ volts alternating current (VAC), at a frequency of 60 Hertz (Hz).
A) 480
B) 240
C) 120
D) 24

Question

Quizplus · Accepted Answer

The most common voltage used for three phase power in the United States is 480 VAC, and it is used for industrial applications. Choice A is the only option in the list that represents the voltage used for this purpose.

The Main Power That Is Supplied to Industries in the United