An electrical appliance of 500 W is used for 5 hours per day Energy consumed in 30 days will be ........

General Science (Easy) Physics

An electrical appliance of 500 W is used for 5 hours per day. Energy consumed in 30 days will be

2.5 kW h

25 kW h

75 kW h

None of these

75 kW h

-Power = 500w

So energy consumed is 500J per second

Energy consumed in 1hour= 500*3600

1800000J=1800kJ

It is used for 5 hours a day

So energy consumed in a day

1800kJ*5

=9000kJ

Energy consumed in 30days

9000*30

= 27000kJ

=75kwh

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