Why Nichrome is used in?
Note: A nichrome wire is used as a heating element because of its high melting point and high resistivity (low conductivity) also. Having a high melting does not allow the nichrome wire to melt easily when a large amount of heat is produced. Hence, nichrome has high resistivity and low conductivity.
What is Nichrome Where is it used?
Nichrome is a non-magnetic alloy of nickel and chromium. Nichrome is widely used in heating elements. It is wound in wire coils to a certain electrical resistance, and current passed through to produce heat.
What is Nichrome one use?
Solution : Nichrome is an alloy of nickel chromium manganese ad iron having a resistivity of about 60 times more than that of copper. It is used for making the heating elements of electrical heating appliances.
What are the features of Nichrome?
Nichrome is characterised by a silver-grey colour and has a high resistance to electrical flow and heat. It is also very resistant to corrosion and wear, is very durable and has a very high melting point at around 1,400oC. Its resistance to oxidation make nichrome a popular material for use in heating elements.
Why is nichrome alloy used for heating appliances?
Nichrome doesn’t burn easily at high temperatures as it has higher melting and boiling point than metals. Hint: Nichrome is an alloy that conducts electricity although it has high resistivity, due to this property it is used for making heating elements of electrical appliances.
Why are alloys used for heating appliances?
Alloys are used in electrical heating devices rather than pure metals because the resistivity of an alloy is more than the resistivity of a pure metal. Alloys do not burn easily even at high temperatures.
Why is nichrome used in toasters?
Nichrome wire is an alloy of nickel and chromium. It has two features that make it a good producer of heat: The nichrome alloy does not oxidize when heated. Iron wire would rust very quickly at the temperatures seen in a toaster.
Why nichrome is not used in bulb?
Answer: Melting point of the metal is lower than what the wire would heat up to in an evacuated globe. So,Tungsten, is used instead where the filament can reach 3200C. When the temperature is under 1000C, then Nichrome (An Alloy of Chromium and Nickel) is used as a resistance heating wire.
Why Nichrome alloy is used in heating appliances?
Nichrome is used to make the heating elements of electrical appliances because it has a high resistance and a high melting point.
What is Nichrome state one use 10?
Due to all these properties Nichrome is used for making heating elements. These heating elements are electric heater, electric rod, electric iron etc. Therefore, Nichrome is used to make heating elements like electric heaters, electric rod, electric iron etc.
What is the composition of Nichrome write its uses?
Nichrome is an alloy mainly composed of nickel and chromium. Its most common form consists of 80 nickel and 20 chromium. It is chemically called as NiCr.
Is Nichrome an insulator?
Nichrome is a conductor. It is used in electric heaters.