A refrigerator is marked 150 W, 220V. How much energy does it consume in 1 month(30days) if it is used for 20 hours a day ? Express the answer in BOT unit.

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Solution

Dear Student,
The refrigretor is used for a number of hours = $30 \times 20 = 600 h$
Power rating of the refrigrator = 150 W
Thus, total energy consumed by the refrigrator in 1 month = $150 \times 600 = 90000 W h$
$1 B O T = 1 k W h T o t a l e n e r g y c o n s u m e d = \frac{90000}{1000} = 90 k W h$
Regards

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