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Heating Effect of Current

Explain why, ...

Question

Explain why, tungsten is used for making the filaments of electric bulbs.

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Solution

Tungsten is used to make filaments of electric bulb as they have high resistivity, high melting point and do not oxidise readily at high temperatures

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Q. Explain the following:
(a) Why is tungsten used almost exclusively for filament of electric lamps?
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(c)Why is nichrome alloy used for making elements of electric irons?

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