How much energy in kilowatt-hours is consumed when ten 100W lamps are used for six hours?

To determine the energy consumed by the ten 100W lamps when they are used for six hours, we start by calculating the total power consumption. Each lamp uses 100 watts, so ten lamps would have a combined power consumption of:

10 lamps x 100 watts/lamp = 1000 watts or 1 kilowatt (since 1 kW = 1000 W).

Next, to find the energy consumed over a period of time, we multiply the total power in kilowatts by the time in hours. In this case, since the lamps are used for six hours, the calculation is as follows:

1 kW x 6 hours = 6 kilowatt-hours (kWh).

This indicates that the total energy consumed by the ten 100W lamps over six hours is indeed 6.0 kWh. Therefore, the correct answer is the option that represents 6 kilowatt-hours, providing a clear understanding of how electrical power consumption is calculated based on wattage and time.