Why is nichrome alloy used for making heating elements of electrical appliances such as electric iron, toaster, etc.?

Correct option is A

The correct answer is (a) all the options.
Nichrome alloy is widely used for making heating elements in electrical appliances such as electric irons, toasters, and heaters due to several beneficial properties:
· Nichrome does not burn easily: Nichrome has a high melting point (around 1400°C or 2552°F) and does not burn or melt easily under high temperatures, making it suitable for use in heating elements.
· Nichrome does not undergo oxidation: Nichrome forms a stable layer of chromium oxide on its surface when heated, which protects it from further oxidation and corrosion. This property enhances its durability and lifespan when used in high-temperature applications.
· Nichrome has high resistivity: Nichrome has a high electrical resistivity, which means it efficiently converts electrical energy into heat. This high resistivity ensures that the heating element heats up quickly and maintains a consistent temperature