What formula is used to calculate a capacitor's microfarads under load?

The formula used to calculate a capacitor's microfarads under load is based on the relationship between current (in amps), voltage (in volts), and capacitance (in microfarads). The correct choice demonstrates that for a given load, the capacitance can be derived by using the formula that incorporates the current drawn by the load and the voltage across the capacitor.

In this case, the formula involves a constant (2653) that allows for the correct conversion of the results into microfarads. The factor takes into account specific characteristics of the electrical circuit, including frequency, where the calculations typically assume a standard frequency (like 60 Hz in the U.S.). This formula provides a more accurate assessment because microfarads is a much smaller unit used in practical electrical applications, making it critical to factor in the correct constants to achieve the desired unit.

The other choices do not provide the necessary conversion factors or relationships to appropriately calculate capacitance in microfarads for a capacitor under load. Therefore, the use of the specific multiplication constant (2653) to relate amps and volts to microfarads is integral for achieving the correct answer.