Glossary Terms and Definitions R

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  24. X
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  26. 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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