Practicing Success
Case: Read the passage and answer accordingly An LCR circuit, also known as a resonant circuit, tuned circuit, or an RLC circuit, is an electrical circuit consisting of an inductor (L), capacitor (C) and resistor (R) connected in series or parallel. The LCR circuit analysis can be understood better in terms of phasors. A phasor is a rotating quantity. The quality factor is defined as the ratio of the voltage drop across the inductor or capacitor to that of applied voltage. It measures the sharpness of resonance of an LCR circuit. |
In a series RLC circuit that is operating above the resonant frequency, the current; |
Lags the applied voltage Leads the applied voltage Is in phase with voltage None of the above |
Lags the applied voltage |
The circuit behaves as a inductive circuit at a frequency higher that resonant frequency and the current lags behind the voltage in an inductive circuit. |