CBSE Class 10 Answered
In a household five tube lights of 40 volt each are used for 5 hours and electric press of 500 volt for 4 hours everyday.
Calculate the total energy consumed by the tubelight and press in a month of 30 days
Asked by ksheluka41 | 03 Nov, 2022, 05:33: PM
Expert Answer
Unit of power rating of electrical appliances is Watt not volt.
It is assumed 4 tubelights of 40 W each is used 5 hours everyday and 500 W electrical press is used 4 hours every day .
It is required to get energy consumption in a month of 30 days.
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Energy consumption of Tubelight in a month = 5 × 40 × 5 × 30 = 30000 W-hr = 30 kWhr
Energy consumption of electrical press in a month = 500 × 4 × 30 = 60000 W-hr = 60 kWhr
Total energy consumption = 90 kWhr
1 kWhr = 3.6 MJ
90 kWhr = 90 × 3.6 MJ = 324 MJ
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Answered by Thiyagarajan K | 04 Nov, 2022, 03:07: PM
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