An electric refrigerator rated 5Vdo operate what is the cost of energy 6 hours per day what is the cost of energy to operate it for 30 days at rupees 4.5 per Kilo watt hour
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An electric refrigerator rated 500 watts operate what is the cost of energy 6 hours per day what is the cost of energy to operate it for 30 days at rupees 4.5 per kilo watt hour
Explanation:
power = 500w = 500/1000 - 0.5 kilo watt
time = 6×30 = 180
ENERGY = POWER× TIME
ENERGY = 0.5 × 180 =90
COST OF 1KW = 4.5 RUPPES
90 × 4.5 = 405 RUPPES
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