To determine which material is best for wiring a house, we should look at conductivity and resistance. A material with higher conductivity and lower resistance is preferred for electrical wiring.
Here's a comparison of the materials provided:
-
Copper:
- Conductivity: \(5.96 \times 10^{7}\)
- Resistance: \(1.68 \times 10^{-8}\)
-
Gold:
- Conductivity: \(4.11 \times 10^{7}\)
- Resistance: \(2.44 \times 10^{-8}\)
-
Iron:
- Conductivity: \(1 \times 10^{7}\)
- Resistance: \(1.0 \times 10^{-7}\)
-
Carbon Steel:
- Conductivity: \(1.43 \times 10^{-7}\)
- Resistance: \(1 \times 10^{10}\)
From the values:
- Copper has the best conductivity (\(5.96 \times 10^{7}\)) and the lowest resistance (\(1.68 \times 10^{-8}\)).
- Gold has good conductivity but is not as good as copper.
- Iron and Carbon Steel are much less effective in terms of conductivity and have higher resistance.
Based on this information, the electrician should use copper for wiring the house.