An electric kettle of 1000W is used for 10 minutes and cost of energy is at
Rs. 5 per kWh. What is the cost of energy?
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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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