Which mineral is a primary material for electrical wiring and plumbing?

Which mineral is a primary material for electrical wiring and plumbing?

• A. Aluminum
• B. Tin
• C. Iron
• D. Copper

Answer: (D)

Copper is chosen because it combines excellent electrical conductivity with ductility and ease of joining, making it ideal for wiring. It also resists corrosion in water systems, which is why copper pipes are common in plumbing. These properties together make copper the best material for both electrical wiring and plumbing among the options. Aluminum conducts electricity and is lighter, but it isn’t as durable or reliable for plumbing joints and long-term connections. Tin is mainly used for solder and coatings, not as a primary material for pipes or wires. Iron conducts electricity poorly compared with copper and corrodes, which is undesirable for wiring and plumbing.

Copper is chosen because it combines excellent electrical conductivity with ductility and ease of joining, making it ideal for wiring. It also resists corrosion in water systems, which is why copper pipes are common in plumbing. These properties together make copper the best material for both electrical wiring and plumbing among the options.

Aluminum conducts electricity and is lighter, but it isn’t as durable or reliable for plumbing joints and long-term connections. Tin is mainly used for solder and coatings, not as a primary material for pipes or wires. Iron conducts electricity poorly compared with copper and corrodes, which is undesirable for wiring and plumbing.