Question

How much work is done using a 60 W lightbulb for one hour

Answer 1

solution:

given;

power = 60 w

time = 1 hr = 3600 seconds

now,

power = work done/time

or, 60 = work done/3600

or, work done = 3600 x 60

therefore, work done = 216000 J (joules)