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AC circuits: phasors, resonance, power

Basic Electrical and Electronics Engineering · Engineering

DC circuit

Interactive 3D

Electrons drift around the loop — raise the voltage and watch the current obey Ohm's law.

Controls

Drag the sliders or type a value — the simulation updates live.

V
1V12V

Study notes

Series RLC: R=10 ohm, L=0.1 H, C=100 uF at 50 Hz. w = 314 rad/s. XL = 314x0.1 = 31.4 ohm. XC = 1/(314x100e-6) = 31.8 ohm. Z = 10 + j(31.4-31.8) = 10 - j0.4 ohm, nearly resistive. Resonance is near: f0 = 1/(2 pi sqrt(0.1x100e-6)) = 50.3 Hz.

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