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An electric heater is used on 220 V supply and takes a current of 5A. What is ita power ? Calculate the per hour cost of using the beater if 1 unit costs Rs 6.0. |
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Answer» Solution :POWER =VI `=220 xx5=1100 ` Watt `=1.1 kW` COST PER hour = `1.1xx6` `= ₹ 6.6 ` |
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