Practice question

Given: A 10 μF capacitor is connected to a 220 V, 50 Hz source. What is the capacitive reactance? These values define the system as per NCERT data. Formula: X_C = 1/omega C, omega = 2π × 50 = 314 rad/s. This is the standard NCERT relation for this phenomenon. Substitution & Calculation: C = 10 × 10⁻⁶ F . X_C = frac1314 × 10 × 10⁻⁶ approx 318.5 Ω . Result: The computed value matches the expected outcome and confirms the correct choice. Units and powers like J kg⁻¹ K⁻¹, m/s², 10⁻⁵ are properly used as per NCERT.