Why is wire plated with silver?

• A. Corrosion resistance
• B. Heat resistance
• C. Better conductivity
• D. Flexibility

Answer: (C)

Silver has the highest electrical conductivity of any metal, so plating a wire with silver lowers the surface and contact resistance where connections are made. This reduces voltage drop and ensures more reliable current flow, which is especially important in precision, signal, and high-frequency applications. Heat tolerance and flexibility aren’t the main benefits here, and silver plating isn’t primarily used to improve those properties.