If an electric iron of 1200 W is used for30 minutes every day, electric energyconsumed in the month of April is(1) 5 kWh (2) 10 kWh(3) 16 kWh (4) 18 kWh
Question
If an electric iron of 1200 W is used for 30 minutes every day, what is the electric energy consumed in the month of April?
Options:
- 5 kWh
- 10 kWh
- 16 kWh
- 18 kWh
Solution
To calculate the electric energy consumed in the month of April, we need to determine the total number of hours the electric iron is used during that month.
Given that the electric iron is used for 30 minutes every day, we can calculate the total number of hours used in a month by multiplying 30 minutes by the number of days in April.
April has 30 days, so the total number of hours used in April is:
30 minutes/day * 30 days = 900 minutes
To convert minutes to hours, we divide by 60:
900 minutes / 60 = 15 hours
Now that we know the total number of hours used, we can calculate the electric energy consumed by multiplying the power of the electric iron (1200 W) by the number of hours used (15 hours):
1200 W * 15 hours = 18,000 Wh
To convert watt-hours (Wh) to kilowatt-hours (kWh), we divide by 1000:
18,000 Wh / 1000 = 18 kWh
Therefore, the electric energy consumed in the month of April is 18 kWh.
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