Why filament of Nichrome is used in electric heater?

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.

Why filament of nichrome is used in electric heater write any two reasons?

Answer: Nichrome wire is used as a heating element because it is very stable, even at high temperatures. Unlike other metals, it will not melt even when generating large amounts of heat. … When electrons encounter resistance while trying to flow through a substance, energy is lost through heat.

Why are you use Nichrome wire in electric iron or electric heater?

Nichrome wire should be used as the heating element in an electric iron. The reasons are mentioned below: High resistivity thus ensuring the wires to heat up faster. High specific heat which provide enough heat to the element.

IT\'S FUNNING:  Who has the lowest standing charge for electricity?

What advantage of nichrome are made use of in electric heating appliances?

Nichrome has high resistance & therefore high heat tolerance. Thanks ..

Which filament is used in electric heater?

Nichrome: Most resistance wire heating elements usually use nichrome 80/20 (80% Nickel, 20% Chromium) wire, ribbon, or strip. Nichrome 80/20 is an ideal material, because it has relatively high resistance and forms an adherent layer of chromium oxide when it is heated for the first time.

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

Nichrome, a non-magnetic 80/20 alloy of nickel and chromium, is the most common resistance wire for heating purposes because it has a high resistivity and resistance to oxidation at high temperatures.

Why do we use nichrome in an electric heater Class 7?

Because it have high melting point.it does not melt even at high temperatures for example in heaters. Because it is a alloy So , it has high melting point . Nichrome is used to make electric heater because the nichrome has comparatively a high resistance due to which it can heated up by passing electricity.

Why nichrome is used in electric iron?

Nichrome is made up of 80% nickel and 20% chromium. Nichrome is a material with high mechanical strength as well as high creep strength. It has a high melting point, allowing it to withstand extreme temperatures. … These characteristics make nichrome an ideal alloy for use in electric iron heating elements.

Why is nichrome alloy used for heating appliances?

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. … It has a high specific resistivity due to which it opposes the flow of current and hence it has a high resistance too.

IT\'S FUNNING:  Where is fuse box in power plant rust?

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.

Is nichrome a good conductor of electricity?

Nichrome is a good conductor, being a metal having resistivity much higher than all insulators. However, its resistivity is much higher than copper or aluminium, which makes resistance from this metal large enough to get a workable value in very small dimensions. Hence it is used as a resistance material.

What is nichrome used for?

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.

Why is nichrome used as standard resistance?

Nichrome, a non – magnetic 80/20 alloy of nickel and chromium, it is the most common resistance wire per heating purpose because it has high resistivity and resistance to oxidation at high temperatures when used as a heating element resistance wire is usually wound into the coil.