Physics, asked by neerav1, 1 year ago

in an household an electric bulb of 100 W is used for 10 hours and an electric heater of 1000W is used for 2 hours . calculate 1- ) the cost of using bulbs and the heater for 30 days .take the cost of one unit of electrical energy as 5 rupees.?

Answers

Answered by Aditya123111

1

here is your answer.hope it will help.

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Answered by Anonymous

2

Energy used by heater =100wx(10hx30days) =30000wh =30unit

Energy used by bulbs =1000w(2h ×30days) =60kwh =60units

Total Energy = 60+30 =90Units

Cost =90×5 =450 rupees

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