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L
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M
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N
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X
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Z
Reactance (X)
Definition: A component's opposition to AC current.
Rectifier
Definition: A diode or diodes that convert AC current into pulsating DC current.
Regulation
Definition: The act of controlling the value of a source.
Resistance (R)
Definition: The opposition to current flow in ohms.
Resistor
Definition: The electrical component that provides resistance.
Rheostat
Definition: A two-terminal adjustable resistor.
Root Mean Square (RMS)
Definition: The value that represents the heating effect value of a sine wave of current. Peak value times 0.707
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