Correct Answer - Option 3 : High temperature coefficient of resistance
Properties of good Heating Element:
The performance and life of heating elements depend on the properties of the material used for the heating element. The required properties in the material used for heating elements are:
- High melting point.
- Free from oxidation in an open atmosphere.
- High tensile strength.
- Sufficient ductility to draw the metal or alloy in the form of wire.
- High resistivity.
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Low-temperature coefficient of resistance.
The materials that are used for manufacturing heating element are nichrome, kanthal, Cupronickel, Platinum
