A 12 μF capacitor is connected to a 220 V, 50 Hz AC source. What is the rms current?
Given: A 12 μF capacitor is connected to a 220 V, 50 Hz AC source. What is the rms current? Formula: X_C = 1/omega C, omega = 2π × 50 = 314 rad/s. Substitution & Calculation: C = 12 × 10⁻⁶F . X_C = frac1314 × 12 × 10⁻⁶approx 265.3 Ω . RMS current: I = V/X_C = 220/265.3 approx 0.83 A . Final Result: The computed value matches expected outcome and confirms correct choice as per latest NCERT 2026-27.
Ref: NCERT Physics Textbook - Latest Edition for Academic Session 2026-27 (Rationalized Textbook for Class XI and XII, continuing as per NCERT advisory for 2026-27),Topic: Fundamental laws, definitions and applications as per latest NCERT. The section explains governing laws, formulas like μ₀ = 4π.