1.

Derive the capacitance of parallel plate capacitor with dielectric slab of dielectric constant K ​

Answer»

ong>EXPLANATION:

Let the TWO plates are KEPT parallel to each other separated be a distance d and cross-sectional area of each plate is A.

Electric field by a single thin plate E ′ = 2ϵ oσ

Total electric field between the plates

E= 2ϵ o

σ + 2ϵ oσ

Or E= ϵσ

Or E= AeQ

Potential difference between the plates V=Ed

⟹ V= AϵoQd

Capacitance C = VQ

Thus we get capacitance of parallel plate CAPACITOR C = dAϵ o

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