ADV/TEC 5: Resonance. Introductory mini-lecture. Resonance in physical systems. Mechanical: pendulum, Tacoma Narrows bridge Atomic transitions: frequency of photon matches the energy difference between two atomic levels
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Resonance is a property of systems that have a natural frequency of oscillation. For example:
i.e.,|ZL|=|ZC |whenω2 =1/LC or
i.e., iL= vL/ZL = –vC/ZC = –iC
stored to energy dissipated
large R for high Q
by the resistance of the inductor RL