Calculations第 22 / 110 题
Using the previous circuit (5.06-V drop on a 120-V circuit), what is the approximate percent voltage drop?
a.2.1%
b.4.2%
c.6.0%
d.3.0%
解析
Percent VD = 5.06 / 120 = 0.042 = 4.2%, which exceeds the 3% recommended for branch circuits.
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