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Calculate the electricity bill amount for a month of 31 days,if the following device are used as specified: a: 4 bulbs of 50 W for 6hrs b: 2 tu elights of 60W forc10 hrs. |
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Answer» f 4 bulbs = 200 w = 0.2 KwPower of 2 TUBE lights = 120 w = 0.12 KwEnergy consumed by 4 bulbs for 6 hrs = 0.2 Kw x 6 Hrs = 1.2 KwHEnergy consumed by 2 tube lights for 10 hrs = 0.12 Kw x 10 Hrs = 1.2 KwHTotal energy = 1.2 KWH + 1.2 KwH = 2.4 KwHElectricity bill for 31 days = 2.4 KwH x 31 x cost of each unit = 74.4 x cost of each unit.Note:cost of each unit didn't GIVE in this question |
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