MDCAT Physics MCQ #178

When a resistor is connected in parallel with an inductor in an AC circuit, what phenomenon occurs due to the phase difference between voltage and current?

MDCAT Physics MCQ #178

  1. Question 1

    Q1. When a resistor is connected in parallel with an inductor in an AC circuit, what phenomenon occurs due to the phase difference between voltage and current?

    • A) The current increases due to the inductive reactance
    • B) The voltage across the resistor increases due to its impedance
    • C) The phase difference results in a resonant frequency, increasing the circuit's efficiency
    • D) The resistor's impedance causes a phase shift, making the circuit's current lag behind the voltage

    Answer: The resistor's impedance causes a phase shift, making the circuit's current lag behind the voltage

    Explanation: The phase difference between voltage and current due to the resistor's impedance causes the current to lag behind the voltage, not the inductive reactance or increased voltage.