Practice question

Given: A rod of length 0.8 m moves at 1.5 m/s in a 0.4 T field perpendicular to its length. What is the induced emf? These values define the system as per NCERT data. Formula: varepsilon = B l v = 0.4 × 0.8 × 1.5 = 0.48 V .. 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.