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
Click on any of these titles from Amazon.com which may be of interest to
Order them directly from Amazon.com with a debit or credit card.