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In a departmental store ,10 bulbs each of 60W , 4 fans each of 60W , 3 AcS each of 2kw are used for 8 hrs per day. Calculate: a) total power consumed per day b) total power consumed 30 daysc) total electrical energy consumed in 30 daysd) the cost of electricity at a rate of rs 4.00 per unit. |
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Answer» as I am solving this one by one.Bulb,=> 60 W = 60/100 Kw = 0.6 Kw=> Power of Bulb = Energy/Time => P = (0.6/8) Kwh => P = 0.075 Kwh => P = 10 x 0.075 = 0.75 Kwh Fan,=> 60 W = 0.6 Kw=> Power of Fan = Energy/Time=> P = (0.6/8) Kwh => P = 0.075 Kwh => P = 4 x 0.075 Kwh = 0.3 Kwh ACs,=> Power = Energy/Time=> P = (2/8) Kwh => P = 0.25 Kwh => P = 3 x 0.25 = 0.75 Kwh 1). Total Power = (0.75 + 0.3 + 0.75) Kwh = 1.8 Kwh 2). Total Power in 30 DAYS = ( 30 x 1.8) UNIT => Total Power = 54 unit 3). Total Electrical Energy = 54 unit 4). Total COST = Rs ( 4 x 54) => Total Cost = Rs 216 Be Brainly |
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