ScienceClass 9CBSE
Q
If an electric iron of 1200 W is used for 30 minutes everyday, find electric energy consumed in the month of April.
A
Soln:
Power of electric iron=1200W Usage per day =30min
=30/60hrs
=0.5hrs
Number of days in the month of April=30days
Electrical energy consumed, E=Pxt 1200x0.5x30
=18000WH
=18KWH
=18units
Therefore, The Total Electricity consumed in april month is 18 units