For what purpose are heating elements made from conductors with high resistivity?

For what purpose are heating elements made from conductors with high resistivity? Give examples of substances that are most often used to make heating elements.

Heating elements are made of conductors with high resistivity, so that the spiral is red-hot, but not melted. Most often, an alloy of nickel, iron, chromium and manganese is used for the manufacture of heating elements.

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