Question

five electric fans of 120 watts each are used for 4 hours calculate the electrical energy consumed in kilowatt hours

Answer 1

......
120*5= 600
600 watts are used by 5 fans in 1 hour....
600*4 = 2400
2400 watts are used by 5 fans in 4 hours ..

as w eknow.




1 kilowatt = 1000 watts
electricity consumed by fans = 2.4 kilowatt / hours


plzzzz mark it brainliest only if it helsp

Answer 2

Answer : 2.4 kWh

Step-by-step explanation :

Since we know that,

1 W = 1/1000 kW

120 W = 120/1000 kW

= 0.12 kW

Such power has been consumed by 5 electric fans,

= 5 × 0.12 kW = 0.6 kW

This energy has been consumed for 4 hours

= 0.6 kW × 4 hrs = 2.4 kWh

So energy consumed = 2.4 kWh