Question

which are transformations that occur in an incandescent light bulb?
select all correct answers.

a. electrical to thermal energy

b. electrical to radiant energy

c. chemical to electrical energy

d. thermal to chemical energy

e. mechanical to radiant energy

Explanation:

An incandescent light bulb works by passing an electric current through a filament. The current heats the filament (electrical to thermal energy, option a). The hot filament then emits light (electrical to radiant energy, option b). Option c is incorrect as there's no chemical - to - electrical conversion here. Option d is incorrect as thermal energy doesn't convert to chemical energy in a light bulb. Option e is incorrect as there's no mechanical energy involved in the energy transformation of an incandescent light bulb.

Answer:

a. electrical to thermal energy, b. electrical to radiant energy