A parallel plate capacitor with width 4 ~cm, length 8 ~cm and separation between the plates of 4 ~mm is connected to a battery of 20 ~V. A dielectric slab of dielectric constant 5 having length 1 ~cm, width 4 ~cm and thickness 4 ~mm is inserted between the plates of parallel plate capacitor. The electrostatic energy of this system will be _ _ _ _ _ _ ε₀ J. (Where ε₀ is the permittivity of free space)

Electrostatics: JEE Main 2022 Physics question

JEE Main 2022 · 27 Jul, Evening shift · Q53

JEE Main 202227 Jul, Evening shiftPhysicsHardElectrostatics167× since 2002

A parallel plate capacitor with width

4 \mathrm{~cm}

, length

8 \mathrm{~cm}

and separation between the plates of

4 \mathrm{~mm}

is connected to a battery of

20 \mathrm{~V}

. A dielectric slab of dielectric constant 5 having length

1 \mathrm{~cm}

, width

4 \mathrm{~cm}

and thickness

4 \mathrm{~mm}

is inserted between the plates of parallel plate capacitor. The electrostatic energy of this system will be ____________

\epsilon_{0}

J. (Where

\epsilon_{0}

is the permittivity of free space)

Your answerType your answer. Integers and decimals are accepted.

JEE Main 2022 Electrostatics Question with Answer (27 Jul Evening shift, Q53) | JEE Arc