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An electric kettle of 1000W is used for 10 minutes and cost of energy is atRs. 5 per kWh. What is the cost of energy? |
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Answer» Answer: 5/6 Rs. Explanation: Power used buy ELECTRIC kettle=1000W =1kW TIME for which electric kettle is used=10 min =1/6 hr. Energy=power*time =1*1/6 KWH 1/6 kWh cost of 1 kWh = Rs. 5 cost of 1/6kWh=5/6 Rs |
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