JEE Main 2025 Physics question
A parallel plate capacitor of capacitance 1 μF is charged to a potential difference of 20 V. The distance between plates is 1 μm. The energy density between plates of capacitor is :
Answer: (1)
Solution
E = V/d = 20×10⁶ V/m, Energy density = (1/2)ε₀E² ≈ 1.77×10³ J/m³