A cable conductor has a 1/2 inch diameter. The cross-sectional area of this conductor is?

To determine the cross-sectional area of a circular cable conductor, you can use the formula for the area of a circle, which is A = πr², where A is the area and r is the radius. Given that the diameter of the conductor is 1/2 inch, the radius would be half of that, which is 1/4 inch.

First, convert the radius from inches to mils (1 inch = 1,000 mils), so 1/4 inch becomes 250 mils. Plugging this value into the formula gives:

A = π(250 mil)²

A = π(62,500 mil²)

A ≈ 196,350 mil²

Now, to convert square mils to Kcmil (Kcmil stands for thousands of circular mils), divide this value by 1,000. This results in:

Area in Kcmil = 196,350 mil² / 1,000 = 196.35 Kcmil.

Since Kcmil values in the provided answer choices appear to be incorrect regarding the application with this diameter, the empirical calculation would suggest looking closer to the size ranges typically used for typical application and acceptance ranges from standard sizing