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In a house there are 10 lamps of 40 W ea...

In a house there are 10 lamps of 40 W each , 5 fans of 80 W each and a TV set of 80 W . They run for 6 hours a day . Find the consumption of electrical in a month of 30 days . What is its value in BOT unit ?

Text Solution

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Total power `=(10xx40)+(5xx80)+80=880W`.
Total time `=6xx30=180h=180xx3600s`
`therefore` Energy consumed in a month `880xx180xx3600`
`5.7xx10^(8)J`
Its value in BOT unit `=(Wxxh)/(1000)=(880xx180)/(1000)=158.4`
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