Question

which uses more energy 100 w bulb in 10 hours or 1500 w ac in one hour.(with solution)​

Answer 1

Answer:

in bulb -100 *10 -1000

in AC -1500 *1 -1500

the AC uses more energy than the bulb

I hope it correct

Answer 2

power of the electric bulb,
P=100W=(100/1000)kW=0.1kW ;
time for which bulb is used, t=5h
As P=
t
W
​
or W=Pt
or W=0.1kW×5h=0.5kWh