Explain, in terms of the definition of power, why energy consumption is sometimes listed in kilowatt-hours rather than joules. What is the relationship between these two energy units?
Step-by-step solution 19CQ Step 1 of 3 Power consumption is the rate at which energy is consumed; therefore the energy consumed over time t is, Here is the energy, is the power and is the time. Step 2 of 3 Electricity bills use the unit kilowatt-hours for energy consumed because energy consumption at the kilowatt level for hours is typical, joules (J) is too small to use for everyday electrical consumption. Since,