Correct option is D
Sol: The correct answer is (d) Only (iii)
The properties of copper that make it ideal for electrical transmission lines are Low resistance
Key Points:
- Low Melting Point (i): This is not an ideal property for electrical transmission lines, as materials used need to withstand high temperatures without melting.
- High Resistivity (ii): High resistivity is not desirable for electrical transmission lines. It means that the material resists the flow of electric current, causing energy losses.
- Low Resistance (iii): This is the key property that makes copper ideal for electrical transmission lines. Low resistance allows efficient transmission of electricity with minimal energy losses.
Information booster:
Copper:
- Copper’s low resistance, high conductivity, and other properties like corrosion resistance and ductility make it an essential material in electrical transmission lines, wiring, electronics, and many industrial applications.
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