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 ........................................ ........................................ ................ 12-13. Power in an AC 12-14. Width of the 12-16. Transformer.

12.1 AC Sources In Chapter 10 we learned that changing magnetic flux can induce an emf according to Faraday’s law of induction. In particular, if a coil rotates in the presence of a magnetic field, the induced emf varies sinusoidally with time and leads to an alternating current (AC), and provides a source of AC power.

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