Verified Solution • 2025–26 Session moderate

QNEET-2021-Ph-647: NEET 2021 Physics - Class 12 NEET-2021-Ph-647 Solution: A parallel plate capacitor has a uniform electric field E in…

A parallel plate capacitor has a uniform electric field 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 capacitor is: (ϵ0\epsilon_0 = permittivity of free space) 12ϵ0E2\frac{1}{2}\epsilon_0 E^2 ϵ0EAd\epsilon_0 EAd 12ϵ0E2Ad\frac{1}{2}\epsilon_0 E^2 Ad E2Adϵ0\frac{E^2 Ad}{\epsilon_0}

Multiple Choice Options

  • A E2Adε0{{{E^2}Ad} \over {{\varepsilon _0}}} _ 0 _ E 2 A d _
  • B 12ε0E2{1 \over 2}{\varepsilon _0}{E^2} 2 1 _ _ 0 _ E 2
  • C ε0EAd{\varepsilon _0}EAd _ 0 _ E A d
  • D 12ε0E2Ad{1 \over 2}{\varepsilon _0}{E^2}Ad 2 1 _ _ 0 _ E 2 A d

Step-by-Step Verified Solution

Energy = Energy density _ volume = 1 2 _ 0 E 2 A d

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