Practice question

Given: A 55 mH inductor is connected to a 230 V, 50 Hz AC source. What is the rms current? These values define the system as per NCERT data. Formula: X_L = omega L, omega = 2π × 50 = 314 rad/s. This is standard NCERT relation. Substitution & Calculation: L = 55 × 10⁻³H . X_L = 314 × 0.055 = 17.27 Ω . RMS current: I = V/X_L = 230/17.27 approx 13.32 A . Result: The computed value matches expected outcome and confirms correct choice as per NCERT.