Sometimes a flashlight filament glows red instead of white, which indicates a lowness of
A)current in the filament.
B)filament temperature.
C)both of these
D)neither of these

Question

Quizplus · Accepted Answer

The color of a flashlight filament, such as glowing red instead of white, indicates both a lower current in the filament and a lower filament temperature. These two factors are directly related, as a lower current through the filament results in less electrical resistance heating, which in turn leads to a lower temperature and a red glow instead of white.

Sometimes a Flashlight Filament Glows Red Instead of White, Which