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Unformatted text preview: , SI unit: henry (H) IMPEDANCE Z RESISTANCE R REACTANCE X CAPACITIVE X C INDUCTIVE X L C X C 1 L X L f 2 Ohms Law: V R = IR V C = IX C V L = IX L Chapter 21 Notes College Physics by Giambattista et al. John B. Ross, Ph.D. IUPUI Physics Dept. Phase Diagram : X L +90 R 0 X C 90 Resonance phenomenon found in a variety of physical systems discuss pumping legs on swing, cracking glass with sound, musical instruments, Tacoma Narrows Bridge in Wash. What happens when the driving frequency equals ? Maximum current Minimum total impedance Current in phase with driving voltage Maximum power transferred from source to circuit X L = X C LC 1...
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