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a 1000-w heater is used for 1hours every day for 30days. find the cost of electricity if the rate is Rs 3.00/unit.

Posted by Sakshi Sharma 1 year, 10 months ago

CBSE > Class 09 > Science

2 answers

Siddharth Singh 1 year, 10 months ago

0Thank You

Vaibhav Verma 1 year, 10 months ago

Ans. Rs 90 1000w = 1kilowatt. Used for 1hr. That is 1kW/h = 1unit of electricity. Similarly for 30 days, if cost per unit is Rs 3. Then, 30× 3 = 90 Rs.

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