Lecture 09 - Inductors and Capacitors

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Presentation transcript:

Lecture 09 - Inductors and Capacitors E E 2315 Lecture 09 - Inductors and Capacitors

Physics of an Inductor (1/2) Coil current, i Core flux, f Toroid of permeability, m, area, A, and length lm. Flux linkage, l Coil of N turns

Physics of an Inductor (2/2) Mmf: F = N·i Magnetic Reluctance: Core Flux: Flux linkage:

Voltage Drop Across Inductor Note Passive Sign Convention

Energy in an Inductor Stored Energy

Physics of a Capacitor (1/3) Current, i, and Charge, q. Plate area, A Plate separation distance, g Voltage across plates Dielectric material of permittivity, e.

Physics of a Capacitor (2/3) Vector fields: Electric Charge:

Physics of a Capacitor (3/3) Current: Capacitance: Note Passive Sign Convention:

Energy in a Capacitor Stored Energy:

Inductors in Series

Capacitors in Parallel

Inductors in Parallel

Capacitors in Series