Practice question

Given: A coil with L = 0.3 H has its current increased from 0 to 6 A in 0.6 s. What is the energy stored? These values define the system as per NCERT data. Formula: W = 1/2 L I² = 1/2 × 0.3 × (6)² = 0.15 × 36 = 5.4 J .. This is standard NCERT relation. Substitution & Calculation: Substituting values and simplifying step by step as per NCERT method. Result: The computed value matches expected outcome and confirms correct choice as per NCERT.