Question

Approximately how much electrical energy does a 5-W lightbulb convert to radiant and thermal energy in one hour?​

Answer 1

18,000 j

Step-by-step explanation:

the lightbulb dissipates 5W of power

P = ΔE / Δt

rearrange to solve for energy

ΔE = PΔt

P = 5W

t = 1 hour = 60 minutes = 3600 seconds

ΔE = 5 * 3600

ΔE = 18000 J