An electric iron has rating of 450W ,220v it is used 5 hour daily calculate current flowing through it and resistance when in use. And energy consumed in KWH per day.
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Answer:
Energy of one day =Power×Time=400W×8h=3.2KWh
Energy of 30 days =3.2KWh×30=96KWh
So, cost of the energy =96×3=Rs.288
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An electric iron rated 450 W operates 5hour/day.
Energy in one day=pawer×time
=450×5
=2250
2.25 KWH
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