1.

Explain the following:​(a) Why is tungsten used almost exclusively for filament of electric lamps?(b) Why are copper and aluminium wires usually used for electricity transmission?​(c)Why is nichrome alloy used for making elements of electric irons?

Answer» Explain the following:

​(a) Why is tungsten used almost exclusively for filament of electric lamps?

(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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