Chapter 12 Alternating-Current Circuits

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Chapter 12. Alternating-Current Circuits AC Sources ........................................ ........................................ ....................... 12-2. Simple AC 12-3. Purely Resistive 12-3. Purely Inductive 12-5. Purely Capacitive 12-7. The RLC Series Circuit ........................................ ........................................ ..... 12-9. Impedance ........................................ ........................................ ................ 12-12. Resonance.

The current and voltage plots and the corresponding phasor diagram are shown in the Figure 12.2.4 below. Figure 12.2.4 (a) Time dependence of IL (t) and VL (t) across the inductor. (b) Phasor diagram for the inductive circuit. As can be seen from the figures, the current IL (t) is out of phase with VL (t)byφ=π/2;

  Voltage, Phasor