Practice question

Given: Four capacitors of 10 μF each are in series. What is the equivalent capacitance? These values define the system as per NCERT data. Formula: 1/C = 1/10 + 1/10 + 1/10 + 1/10 = 4/10. This is the standard NCERT relation for this phenomenon. Substitution & Calculation: C = 10/4 = 2.5 μF . 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.