WEBVTT

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Here coil (inductance), capacitor and series resistance

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Blue signal: in parallel on the resistor

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The red seeing measures L coil and C capacitor in series

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This time at low frequency the red signal is lagging: the capacitance is preponderant with respect to the inductance because it opposes a high impedance

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The capacity impedance decreases as the frequency increases, the red curve decreases

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At the resonance all the tension is in R: blue curve. impedance LC tends to 0!

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As the frequency increases, the impedance increases again: the coil dominates

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Parallel resonance: Z tends to infinity. Here in series resonance the impedance tends to 0!

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Somewhat the inverse of the series assembly: it is in series that I is minimum here: vector sum

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In series the vectors oppose making Z the impedance very low

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Serial or parallel resonance frequency are of the same value in Hertz