engineering physics MCQ #251

An inductor of 20 mH and a resistor of 10 Ω are connected in series to an AC source. The voltage across the inductor is 20 V. The voltage across the resistor is

engineering physics MCQ #251

  1. Question 1

    Q1. An inductor of 20 mH and a resistor of 10 Ω are connected in series to an AC source. The voltage across the inductor is 20 V. The voltage across the resistor is

    • A) 10 V
    • B) 20 V
    • C) 5 V
    • D) 40 V

    Answer: 10 V

    Explanation: First, find the current using XL and VL, then use Ohm's law to find VR.