The electrical energy across a resistor is determined to be the current squared multiplied by the resistance and the time. The joule, however, is a very small unit of energy and using the joule to sta...The electrical energy across a resistor is determined to be the current squared multiplied by the resistance and the time. The joule, however, is a very small unit of energy and using the joule to state the amount of energy used by a household would require a very large number. The electric energy transferred to a resistor in a time period is equal to the electric power multiplied by time, E=Pt, and can also be calculated using E=I 2 Rt.
