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These ohms watts formulas work for all circuits because power factor has been included in the formulas. If the circuit you are making calculations for is DC or AC resistive, then there are more basic formulas which can be uses. Click HERE to see these formulas.

Check out this pie chart to see formulas used in all AC circuits. Keep in mind that if the AC circuit you are working on is purely resistive, then pf will be 1.0 and can be left out of the calculation.

Find practice problems with these values on subsequent pages of this website.



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