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How can energy transferred (E) in kilowatt-hours be calculated?

E = P × t

To calculate the energy transferred in kilowatt-hours, the formula involves the power and the time over which that power is applied. Power is typically measured in kilowatts (kW), and time can be measured in hours. The correct formula, E = P × t, indicates that energy (E) is the product of power (P) and time (t). This means that if you multiply the power (in kilowatts) by the time (in hours), you will get the energy transferred (in kilowatt-hours).

In this context, since energy is expressed in kilowatt-hours, it is important that the power is expressed in kilowatts and the time is measured in hours to match the units appropriately, thus giving a consistent result.

Other variations of the formula emphasize different aspects but don't correctly align with the units needed for energy in kilowatt-hours or misrepresent the relationship between power, time, and energy.

Get further explanation with Examzify DeepDiveBeta

E = P × t(h)

E = P ÷ t

E = Pt

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