Why is nichrome used as heating element instead of copper?

Nichrome does not oxidise in air or burn easily like other metals when heated at high temperature. Also, it has very high melting and boiling points, so it does not melt or break easily when a large amount of current flows through it whereas other metals like copper and aluminium do.

Why is Nichrome wire generally used as heating element in heating appliances give any three reason?

In most of the household heating appliances, nichrome element is used because of the following reasons: (i) Its melting point is high. (ii) Its resistivity is large. (iii) It can be easily drawn into thin wires (i.e., it’s ductile).

Why is nichrome used as a heating element Class 7?

Nichrome has high resistivity and high melting point. More so, it does not react with air when it is red hot (800∘C).

Why is nickel used as heating element?

AN ALLOY OF NICKEL AND CHROMIUM IS USED AS A HEATING ELEMENT BECAUSE IT INCREASES THE ELECTRICAL RESISTANCE AT HIGH TEMPERATURES AS WELL AS IT MAKES THE ALLOY CORROSION RESISTANT IN WATER. MAY THIS HELP YOU.

Why is nichrome used as standard resistance?

It has very low resistivity and a very high boiling point (~1400 °C) which makes nichrome a very good conductor of electricity and ideal material for making wires and standard resistance coil.

Why is Nichrome used for electrical appliances?

Nichrome is used for the making of heating elements of electrical appliances because, Nichrome has high resistivity. Nichrome does not oxidize when exposed to air.

Why is nichrome used for electrical appliances?

Why do we use this alloy as heating coil?

As we know alloys have high resistivity and high melting point as compared to pure metals. So alloys cannot easily burn or oxidize at higher temperature. Now as we want higher temperature in heating devices so we use alloys in heating devices.

Why is nichrome used for heating elements of heaters and toasters Class 7?

Nichrome doesn’t burn easily at high temperatures as it has higher melting and boiling point than metals.

What is the Speciality of nichrome?

Because of its low cost of manufacture, strength, ductility, resistance to oxidation, stability at high temperatures, and resistance to the flow of electrons, nichrome is widely used in electric heating elements in applications such as hair dryers and heat guns.