An incandescent light bulb produces light because current in a tungsten filament is trnsformed into other types of energy.
- identify the type of energy, other than light, produced by the incandescent light bulb.
- describe how this energy is directly responsible for the light that is produced.
- apply the second law of thermodynamics to this process, explaining the changes in enegry. Consider the light produced to be the work output of the bulb.