Question

in a room,a tubelight of 40W a fan of 75 W and a cooler 150W have been installed. If all these appliances are used for 8 hours a day calculate the energy consumed per day

Answer 1

total power=40w+75w+150w=265w
we know energy=power x time
total energy=265w x 8hours
=265 x 8 x 3600 j
=7632000 j=7632 kj
hence 7632 kj energy consumed per day