why alloys are used for making heating elements for electrical appliances
Answers
Answer:
Alloys unlike metals meet the requirements of high mp & resistivity, when you create alloys form metals you form certain bonds between the metal and the other substance you mix to make the alloy these newly formed bonds bind the alloy(turned from metal due to doping) together and don’t let it melt free at relatively higher temperatures then parent metal.
For the same reason, less free electrons( all thanks to newly formed bonds which hold elections captive in localized region) the conductivity falls down ( charge careers reduced ie less electrons are free to conduct the current).
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ALLOYS ARE THE MIXTURE OF TWO OR MORE METALS.
THEY HAVE HIGH HEAT RESISTIVITY AND THEY HAVE A VERY HIGH MELTING POINT SO THEY ARE USED IN MAKING HEATING ELEMENTS.
NOTE:- THEY HAVE LOW ELECTRICAL CONDUCTIVITY.