OnlineCBT
Physics · PYQ NEET UG 2021
हिन्दीA parallel plate capacitor has a uniform electron field \( \vec{E} \) in the space between the plates. If the distance between the plates is 'd' and the area of each plate is 'A', the energy stored in the capacitance is: (\( \varepsilon_0 \) = permittivity of free space)
Correct answer · Option 2
\( \frac{1}{2} \varepsilon_0 E^2 Ad \)
Explanation
Energy density \( u = \frac{1}{2} \varepsilon_0 E^2 \). Total energy \( U = u \times \text{Volume} = (\frac{1}{2} \varepsilon_0 E^2) \times (Ad) \).
