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Calculate the monthly bill for a …

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Calculate the monthly bill for a heater of resistance 20ohm which is used on 240v mains such that it's daily use is for 2 hours. The cost of electrici energy is ₹4.30 perkilo watt

Posted by Bharath Hg Bharathhg 4 years, 1 month ago

CBSE > Class 10 > Science

1 answers

Sia ? 4 years, 1 month ago

Resistance of heater = 20Ω
V = 240v
Time for which is the heater used daily = 2 hrs
Cost = Rs. 4.30 per kWh

Total Work done by the heater every day =

Total work done by the heater in a Month of 30 days = 5760*30/1000
=>172.8kWh

Total Cost = 172.8 * 4.30 = Rs. 743.04

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