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An electric iron of power 2 kW is used for 3 hours. At Rs 5 per unit, the electricity bill will be .......... |
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Answer» Rs 45 `W = P xx t` = 2 KW `xx` 3 H = 6 kWh = 6 unit `:.` Cost of electric power consumed (electricity bill) `5 xx 6 = Rs 30` |
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