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Physical Properties of Metals

copper is use...

Question

copper is used for electrical transmission lines where as tungstn is used exclusively for filaments of electrical bulbs. why

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Solution

Copper - good conductor of electricity and can effectively carry current over long distances.
Tungsten - high melting point and resistivity and thus will glow when current is passed through it.

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(b) Why are copper and aluminium wires usually used for electricity transmission?
(c)Why is nichrome alloy used for making elements of electric irons?

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