Incorrectly calculates for AC – OHMs Law Calc Review

Good attempt, but this calculator works 100% correctly ONLY for DC. For AC, it ignores Power Factor (PF), caused by ever present out-of-phase Reactive currents. All AC "Power" results are really in "Volt-Amps" (VA) not Watts. For 3-Ph AC it incorrectly calculates VA, when given Voltage & Current. The correct method is: V x A x 1.73 (Sq Root of 3) = VA Power in Watts is then: VA x PF = Watts PF is always a number between 0 & 1, with 1 being in-phase (purely resistive) current, and 0 being 90 deg out-of-phase (purely reactive) current. For calculations (where actual PF is unknown) a PF of 0.8 is typically used. Resistance alone in never the only factor in AC Circuits.
Review by DOFFUTT on OHMs Law Calc.

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