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The cosine of phase angle shows how effectively power is used.
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Electrically isolates circuits while transferring power magnetically.
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Power that cycles between source and load without doing useful work.
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Electricity can be generated by moving a wire in a magnetic field.
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Product of RMS voltage and current, combining real and reactive components.
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Rotating a coil in a magnetic field produces electricity.
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Common for homes; uses two wires with alternating current.
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Produces alternating current used in power grids.
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Provides balanced power delivery with three sinusoidal voltages.