Correct Answer : (C)
Nickel and chromium
Nichrome wire is an alloy of Nickel and chromium.
- Nichrome has a high melting point of about 1,400 ?C (2,550 ?F), and has an electrical resistivity of around 112 microOhm-cm, which is around 66 times higher resistivity than copper of 1.678 microOhm-cm.
- It is used in heating elements such as hair dryers, heat guns and Ovens.
- Nichrome is used to make the coils used in water heaters.
- Nichrome is used in the explosives and fireworks industry as a bridgewire in electric ignition systems, such as electric matches and model rocket igniters.