Theoretical question: Could an incandescent light bulb be used as a temperature sensor?
Since it is a theoretical question, and no one can prove a negative, I'm going to say yes. You could determine the ambient temperature by observing changes in an incandescent light bulb's current.
I apologize for not knowing the source, but a wise person once said &quot;Everything is a temperature sensor but some are better than others&quot;. When the question is not theoretical but practical we will choose one of the better sensors, and an incandescent bulb is not one of those.