Warm-up problem Topics Transformers LC Circuit Qualitatively

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Presentation transcript:

Lecture 11 Electromagnetic Oscillations and Alternating Current Chp. 31 Warm-up problem Topics Transformers LC Circuit Qualitatively Electrical and Magnetic energy oscillations Alternating current Pure R and L circuits Series RLC circuit Power and Transformers Demos

Where w is the rotational angular frequency of the generator Coil of wire Axis of rotation  B Where w is the rotational angular frequency of the generator w= 2pf and f= 60 Hz

Driven RLC Series Circuit

Demonstration 1.0 uF 4.25 mH

Series LCR circuit

Peak value Effective Power rms=root-mean-square