What is the total resistance of a two-wire circuit that spans a distance of 100' each way if the resistance per 1,000' is 1.24 ohms?

To determine the total resistance of a two-wire circuit, it is essential to first calculate the resistance per wire and then account for both the 'to' and 'from' distances which doubles the path.

In this scenario, the given distance for each wire is 100 feet, and since we have a two-wire circuit, the total length for calculating resistance is 100 feet to the load and another 100 feet back to the source, resulting in a total circuit length of 200 feet.

The resistance is provided per 1,000 feet, which is 1.24 ohms. To find the resistance for 200 feet, we can set up a straightforward proportion:

1. Start with the resistance per 1,000 feet:

1.24 ohms / 1,000 feet.

2. Multiply this resistance value by the total length of the circuit in feet (200 feet):

Resistance for 200 feet = (1.24 ohms / 1,000 feet) * 200 feet

= 0.248 ohms.

Thus, the total resistance for the two-wire circuit, factoring in both directions, equals 0.248 ohms, making this the correct answer. Understanding the