Work Step by Step
The room-temperature filament has a low resistance, allowing a large current to surge through and burning out the bulb. The electrical resistance of the filament increases as it heats up, reducing the current.
You can help us out by revising, improving and updating this answer.Update this answer
After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.