Final answer:
The two main issues with connectors are physical wear and tear, and corrosion, which can both lead to unreliable connections. Copper is typically used in connectors for its excellent conductivity, with rubber and plastic materials providing insulation.
Step-by-step explanation:
The two main problems with connectors are related to their physical and electrical properties. Firstly, connectors can experience physical wear and tear, which might lead to loose connections or breakage over time, making the connection unreliable or causing intermittent failures. This wear can result from repeated plugging and unplugging, or stress from bending and twisting. Secondly, connectors are susceptible to corrosion, which can impair the metal contacts and result in poor conductivity or even failure to establish an electrical connection.
One fact about connectors is related to their makeup as conductors and insulators. Inside a computer jack or a plug, metal wires, commonly made of copper, are used to conduct electricity. Copper is chosen for its excellent conductivity, allowing electrons to move freely through the cable. These metal wires are often shielded by materials like rubber and plastic, which act as insulators to prevent electric charge from escaping outward.