Why are alloys commonly used in electrical heating devices? give reason.
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Answer:
Alloys generally have high melting point as compared to the individual elements. The electrical heating devices must have high melting point so that they do not melt even at high temperature when an electrical current passes through the device. Thus alloys are used in electrical heating device.
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Alloys are commonly used in electrical heating devices because =>
1) They have higher resistivity as compared to pure metals and has high melting point.
2) They do not burn in oxygen i.e. they don’t get oxidised readily at a higher temperature.
1) They have higher resistivity as compared to pure metals and has high melting point.
2) They do not burn in oxygen i.e. they don’t get oxidised readily at a higher temperature.
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