Final answer:
Wires are joined together with solder to ensure electrical conductivity, mechanical strength, and prevention of oxidation.
Step-by-step explanation:
Wires are joined together with solder for several reasons:
- Electrical conductivity: Solder is a material that conducts electricity well, so it helps to maintain a continuous path for the flow of electrical current through the joined wires.
- Mechanical strength: Solder provides a strong bond between the wires, ensuring that they stay securely connected even when subjected to mechanical stress or movement.
- Prevention of oxidation: Soldering creates a protective barrier around the joint, preventing the exposed metal surfaces from coming into contact with air and reducing the risk of oxidation and corrosion.