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Visualizing Phasor Rotation in Circuit Theory

Explore the graphical interpretation of a phasor in ECE 201 Circuit Theory I, represented on the unit circle with rotation angle θ. Learn about unit vectors, sinusoidal functions, and cosines in electrical circuits.

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Visualizing Phasor Rotation in Circuit Theory

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  1. Graphical Interpretation of a Phasor ECE 201 Circuit Theory I

  2. Im Unit Circle θ Θ = 0 Re Unit vector rotating counter-clockwise at ω = 2πf (through 2π radians per cycle) ECE 201 Circuit Theory I

  3. Im Unit Circle sinθ θ Re cosθ ECE 201 Circuit Theory I

  4. Im Unit Circle jsinθ θ Re cosθ ECE 201 Circuit Theory I

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