Question

Nichrome wire is not used as filament in filament lamps. Why

Answer 1

Answer:

nichrome wire, an alloy of nickel and chromium, and often iron (or other elements) is good for making heaters but not lamps. At rated voltages, nichrome will glow orange-red, not the bright white that is needed for illumination. If you increase the voltage to get a brighter color, the nichrome will burn open (melt.) The challenge in designing lamp filaments is finding a material that gives a bright glow but does not burn open.

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