Electricity & Magnetism
Capacitor with Dielectric
Capacitance of parallel plate capacitor with dielectric material.
Variables
CF
Capacitance
Capacitance with dielectric
κunitless
Dielectric constant
Relative permittivity
ε₀F/m
Permittivity
8.85×10⁻¹²
Am²
Plate area
Area of each plate
dm
Separation
Distance between plates
Derivation
Dielectric increases capacitance by factor κ. C = κC₀ = κε₀A/d.
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