We can find the electric field intensity between the plates from the formula:
D=ϵE=ϵ0ϵrE,here,
D is the electric displacement field (in free space, the electric displacement field is equivalent to flux density ),
ϵ is the permittivity of the dielectric,
ϵ0 is the permittivity of the free space,
ϵris the relative permittivity of the dielectric,
E is the electric field intensity.
Since, charge density equals flux density, we get:
E=ϵ0ϵrD.Let's substitute the numbers:
E=8.854⋅10−12mF⋅35⋅10−4cm2μC⋅1μC10−6C⋅1m2(100cm)2=188238mV.We can find the voltage between the plates from the formula:
V=Ed=188238mV⋅0.15⋅10−3m=28.2V.Answer:
E=188238mV,V=28.2V.
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