What is the voltage drop for a #8 (16.150 cmil) copper wire carrying 39 amps over a distance of 215 feet at 120 volts?

To determine the voltage drop for a #8 copper wire carrying 39 amps over a distance of 215 feet at 120 volts, you can use the voltage drop formula. The formula for calculating voltage drop is:

Voltage Drop (V) = (Current (I) × Distance (D) × Resistance per unit length) / 1000

For copper wire, the resistance per 1000 feet for #8 AWG is typically around 0.628 ohms. Here, the current is 39 amps, and the distance is doubly considered as current has to travel to the load and back (therefore, the total distance is 430 feet).

1. Calculate the total resistance for 430 feet: Total Resistance = (Resistance per 1000 ft) × (Total Distance in ft / 1000) Total Resistance = 0.628 × (430 / 1000) = 0.27004 ohms

2. Now, calculate the voltage drop: Voltage Drop = Current × Total Resistance Voltage Drop = 39 amps × 0.27004 ohms ≈ 10.53 volts.

When reviewing the provided options, the closest value to the calculated voltage drop of approximately