How much energy does a 100-W light bulb use in 8.0 hours?
A)0.0080 kWh
B)0.80 kWh
C)13 kWh
D)800 kWh

Name: How much energy does a 100-W light bulb use in 8.0 hours? A)0.0080 kWh B)0.80 kWh C)13 kWh D)800 kWh
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Question

Quizplus · Accepted Answer

To calculate the energy consumed, we use the formula E = P x t, where E is energy in kWh, P is power in kW, and t is time in hours. Converting the power from 100 W to 0.1 kW and using the values given, we get E = 0.1 kW x 8.0 hours = 0.8 kWh. Therefore, the correct answer is B) 0.80 kWh.

How Much Energy Does a 100-W Light Bulb Use in 8.0