A bare conductor can withstand higher levels of current than an insulated conductor of the same cross-sectional area. Do not exceed one ampere (rms current)for five seconds for every ____ circular mils of cross-sectional area of the conductor.
A)29.1
B)42.3
C)54.2
D)61.8

Question

Quizplus · Accepted Answer

The correct choice is based on the formula for determining the current carrying capacity of a conductor, which is often derived from the circular mil area per ampere rule. The specific figure of 29.1 circular mils per ampere is a standard guideline used in electrical engineering to ensure that conductors can safely carry the current without overheating.

A Bare Conductor Can Withstand Higher Levels of Current Than