An electric fridge of 1000 watt operates 4 hr per day for 30 days. How much is the energy consumed by the fridge in this period?

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Solution

1000watt=1kwatt

Energy=powertime=1(kw)4(hr)=4kwh

Energy used in a day=4kwh=4 unit

Energy used in 30 days= 30*4

=120 units

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An electric fridge of 1000 watt operates 4 hr per day for 30 days. How much is the energy consumed by the fridge in this period?

1000watt=1kwatt Energy=power*time=1(kw)*4(hr)=4kwh Energy used in a day=4kwh=4 unit Energy used in 30 days= 30*4 =120 units

1000watt=1kwatt

Energy=powertime=1(kw)4(hr)=4kwh

Energy used in a day=4kwh=4 unit

Energy used in 30 days= 30*4

=120 units