Practice question

Given: A plane sheet has sigma = 8.854 × 10⁻¹¹ C/m² . What is the electric field near it? These values define the system as per NCERT data. Formula: E = sigma/2 varepsilon_0. This is the standard NCERT relation for this phenomenon. Substitution & Calculation: E = frac8.854 × 10⁻¹¹² × 8.854 × 10⁻¹²= 5 N/C . 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.