an electric refrigirator rated 400w operates 8 hour/day. what is the cost of energy operated for 30 days at Rs3/unit
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Power = 400w = 0.4 Kw
Energy used in one day = 0.4 Kw × 8 hrs. = 3.2 KwH = 3.2 unit
Energy used in 30 days = 3.2 unit × 30 = 96 units
Cost of 1 unit = Rs 3
Coat of 96 units = Rs (3×96) = Rs 288
Hope it works:)
Energy used in one day = 0.4 Kw × 8 hrs. = 3.2 KwH = 3.2 unit
Energy used in 30 days = 3.2 unit × 30 = 96 units
Cost of 1 unit = Rs 3
Coat of 96 units = Rs (3×96) = Rs 288
Hope it works:)
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