engineering physics MCQ #24

A capacitor of capacitance 1 μF is connected to an AC source of voltage 220 V and frequency 50 Hz. The rms current is

engineering physics MCQ #24

  1. Question 1

    Q1. A capacitor of capacitance 1 μF is connected to an AC source of voltage 220 V and frequency 50 Hz. The rms current is

    • A) 0.069 A
    • B) 0.138 A
    • C) 0.207 A
    • D) 0.276 A

    Answer: 0.069 A

    Explanation: Xc = 1 / (2πfC) = 1 / (2π * 50 * 1e-6) = 3183 Ω, Irms = Vrms / Xc = 220 / 3183 = 0.069 A.