State the property of copper wires that makes them useful for electric...
Properties of copper that make it useful for wiring
Electrical conductivity.
Tensile strength.
Ductility.
Strength and ductility combination.
Creep resistance.
Corrosion resistance.
Coefficient of thermal expansion.
This question is part of UPSC exam. View all Class 8 courses
State the property of copper wires that makes them useful for electric...
Conductivity:
Copper wires are widely used for electrical fittings due to their exceptional conductivity properties. Copper is an excellent conductor of electricity, meaning it allows the flow of electric current with minimal resistance. This property is crucial in electrical applications as it ensures efficient transmission and distribution of electrical power.
Low Resistance:
The low resistance of copper wires is another significant property that makes them highly useful for electrical fittings. Resistance is the opposition to the flow of electric current, and materials with low resistance allow for better conduction. Copper has one of the lowest electrical resistivities among common metals, which means it offers very little resistance to the flow of electrons. As a result, copper wires minimize power loss and heat generation, leading to more efficient electrical systems.
Ductility and Malleability:
Copper is a highly ductile and malleable metal, which means it can be easily drawn into thin wires and shaped into various forms. This property makes copper wires extremely versatile and suitable for different electrical fitting applications. The ductility of copper allows it to be pulled into long, continuous wires without breaking, enabling the production of long-length conductors required for electrical installations. Additionally, the malleability of copper allows it to be easily bent, twisted, and formed into complex shapes, facilitating the creation of intricate electrical connections.
Corrosion Resistance:
Copper wires possess excellent corrosion resistance, which is crucial for their long-term reliability and durability in electrical fittings. Copper forms a protective oxide layer on its surface, preventing further oxidation and corrosion. This oxide layer acts as a barrier, safeguarding the underlying copper from environmental elements such as moisture and chemicals. As a result, copper wires maintain their electrical conductivity and structural integrity over extended periods, ensuring stable and reliable electrical connections.
High Thermal Conductivity:
In addition to its excellent electrical conductivity, copper also exhibits high thermal conductivity. This property allows copper wires to efficiently dissipate heat generated during electrical operation, preventing overheating and potential damage to the electrical system. By effectively transferring heat away from the source, copper wires contribute to the overall safety and reliability of electrical fittings.
In conclusion, the exceptional conductivity, low resistance, ductility, malleability, corrosion resistance, and high thermal conductivity of copper wires make them highly suitable for electrical fittings. These properties ensure efficient electrical transmission, minimal power loss, ease of installation, long-term reliability, and effective heat dissipation.
To make sure you are not studying endlessly, EduRev has designed Class 8 study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in Class 8.