Why is imaginary power so expensive? This course requires students to mind their P's and Q's (real and reactive power). Students will build upon circuit theory concepts as they apply to alternating current using phasor analysis. Complicated networks are analyzed using mesh and nodal matrix methods. MATLAB is introduced as a computational tool. The course emphasis is upon ac power applications including transformers and three-phase systems. Laboratory sessions will back up the analysis with hands on exercises using electronic instrumentation.