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An Electric Iron Rated 750 W is Operated for 2 Hours/Day. How Much Energy is Consumed by the Electric Iron for 30 Days?

Question

An electric iron rated 750 W is operated for 2 hours/day. How much energy is consumed by the electric iron for 30 days?

Short/Brief Note

Solution

Data Given: Power = 750 W,

Time = 2 hours per day,

No. of days = 30 days.

Energy consumed = Power Rating x time of operation.

Therefore, Energy consumed = 750 W x 2 hrs x 30 days = 45000 W hour

Therefore, Energy consumed = (45000 / 1000 ) kWh.

Therefore, Energy consumed = 45 kWh.

Therefore, Energy consumed by the electric iron is 45 kWh.

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Q 2.C Q 2.B Q 2.D

2014-2015 (July)

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2014-2015 (July) (with solutions)

Q 2.C | 2 marks

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