MDCAT Physics MCQ #62

In an LCR series circuit, resonance occurs when the inductive reactance equals the capacitive reactance. Why is this condition critical?

MDCAT Physics MCQ #62

  1. Question 1

    Q1. In an LCR series circuit, resonance occurs when the inductive reactance equals the capacitive reactance. Why is this condition critical?

    • A) It maximizes the total impedance of the circuit.
    • B) It cancels the reactive components, allowing maximum current flow.
    • C) It increases the resistance to prevent energy loss.
    • D) It reduces the phase angle between voltage and current to 90°.

    Answer: It cancels the reactive components, allowing maximum current flow.

    Explanation: Resonance cancels X_L and X_C, minimizing impedance. A is incorrect because impedance is minimized, not maximized.