Correct Answer - Option 1 : 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.
- Low-temperature coefficient of resistance.
The materials that are used for manufacturing heating element are nichrome, kanthal, Cupronickel, Platinum.
Transformers, house wirings and transmission lines employes material with low resistivity to reduce or overcome the power loss
