Explanation:
Electric heating appliances use a heating element to generate heat. The heating element is the part of the appliance that directly converts electrical energy into heat. The material of the heating element is crucial to its performance and efficiency. In electric heating appliances, the most commonly used material for the heating element is nichrome.

Nichrome:
Nichrome is an alloy of nickel, chromium, and sometimes iron. It is a good conductor of electricity and has a high melting point. It also has a high resistance to oxidation and corrosion, which makes it ideal for use in heating elements. Nichrome wire is commonly used in appliances such as toasters, hair dryers, and electric ovens.

Reasons for Choosing Nichrome:
There are several reasons why nichrome is the preferred material for heating elements in electric appliances. These include:

1. High resistance: Nichrome wire has a high resistance to the flow of electric current. This means that when electricity is passed through the wire, it generates heat. The higher the resistance, the more heat is generated.

2. High melting point: Nichrome has a very high melting point, which makes it ideal for use in heating elements. This means that it can withstand high temperatures without melting or deforming.

3. Corrosion resistance: Nichrome is highly resistant to corrosion and oxidation. This means that it can withstand exposure to air and moisture without rusting or deteriorating.

4. Durable: Nichrome wire is very durable and can last for a long time without deteriorating. This makes it ideal for use in heating elements that are subjected to high temperatures and frequent use.

Conclusion:
In conclusion, the material of the heating element in electric appliances is crucial to its performance and efficiency. Nichrome is the most commonly used material for heating elements due to its high resistance, high melting point, corrosion resistance, and durability.

Nichrome resistivity is higher it is used for making electrical heating appliances because of higher sensitivity it converts most of the electrical energy into heat that is used by electrical appliances like electrical iron.