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RLC circuit(or

LCR circuitor

CRL circuitor

RCL circuit) is an

electrical circuitconsisting of a

resistor, an

inductor, and a

capacitor, connected in series or in parallel. The RLC part of the name is due to those letters being the usual electrical symbols for

resistance,

inductanceand

capacitancerespectively. The circuit forms a

harmonic oscillatorfor current and will

resonatein a similar way as an

LC circuitwill. The main difference that the presence of the resistor makes is that any oscillation induced in the circuit will die away over time if it is not kept going by a source. This effect of the resistor is called

damping. The presence of the resistance also reduces the peak resonant frequency somewhat. Some resistance is unavoidable in real circuits, even if a resistor is not specifically included as a component. A pure LC circuit is an ideal which really only exists in theory

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12y ago

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