Page 345 - Basic Electrical Engineering
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Inductive reactance,


                     X  = 2πfL = 2 × 3.14 × 50 × 0.15
                      L

                                     = 47.1 Ω



               Capacitive reactance,










               Here, X  is greater than X . Therefore, the circuit reactance will be X –X .
                                               C
                         L
                                                                                                   L
                                                                                                        C
               Impedance,


                                   Z = R + j(X  − X )
                                                 L
                                                        C
                                      = 15 + j(47.1 − 31.84)

                                      = 15 + j15.26 Ω


               Current,























               This shows that magnitude of current is 10.75 A and the current lags the

               voltage by 45.3°.


                Power factor,                        cos ϕ = cos 45.3° = 0.703 lagging
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