Answer :
The 100 W lamp consumes 18 kilowatt-hours of electric energy when used for 6 hours every day for 30 days.
To calculate the electric energy consumed by the lamp, we need to multiply the power of the lamp by the time it is used. The power of the lamp is given as 100 W and it is used for 6 hours every day for 30 days.
To convert the power from watts to kilowatts, we divide it by 1000. So, the lamp consumes 0.1 kilowatts of power. Multiplying the power by the time used, we can calculate the electric energy:
Electric Energy = Power × Time
Electric Energy = 0.1 kW × 6 hours/day × 30 days
Electric Energy = 18 kilowatt-hours (kWh)
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