Question

an electric bulb has a power of 150 W. how much electrical energy will it consume in 10 s​

Answer 1

Answer:

Given, 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

hope this will help you