Sea water at frequency V=2×108Hz has permittivity ∈≈60∈0, permeability, μ≈μ0 and resistivity ρ=0.50Ω−m.Imagine a parallel plate capacitor with plate gap of 1m, immersed in sea water and driven by an alternating Voltage of 200V then the maximum conduction current density is _______VΩm2

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answer is 0400.00.

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Detailed Solution

Applied electric field, E=V0d. The max conduction current density is JC=Eρ=V0ρd JC=200×21×1=400VΩm2

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