In a house, 5 bulbs of 40W, 4 bulbs of 1000 W and 750W refrigerator are used for 5 hours daily. Thn how much energy is consumed per day?

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Answer 1 · 2018-07-23T16:36:54

The energy consumed daily is#=24.75kWh#

The power installed is

#P=(5*40)+(4*1000)+(750)=4950W#

The time is

#t=5h#

The energy consumed daily is

#E=Pt=4950*5=24750Wh=24.75kWh#

Answer 2 · 2018-07-23T16:49:58

The energy consumed per day is #24.75 "kiloWatt" * "hours"#.

Adding those power ratings together:

#5*40 W + 4*1000 W + 1*750 W = 4950 W#

The power company measures energy in #"kiloWatt" * "hours"#.

Multiplying the power total by the 5 hours gives us the energy consumed per day:

#4.95 "kiloWatt" * 5 "hours" = 24.75 "kiloWatt" * "hours"#

I hope this helps,
Steve