Question

How long will it take for a 30W light bulb to transfer 1200J of energy? - 400 seconds - 4 minutes - 40 seconds - 4 seconds

Answer 1

40 seconds

Step-by-step explanation:

Time (measured in seconds) = Work Done (measured in Joules) / Power (measured in Watts)

Time (s) = 1200/30

Time (s) = 40

It will take 40 seconds for a 30W light bulb to transfer 1200J of energy.