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1. Consider a parallel-plate capacitor immersed in sea water and driven by a voltage V₁ cos (2πvt). Let v = 4.0 × 10³ Hz: at this frequency, sea water has permittivity € = = 81€0, permeability μ = μo, and resistivity p = 0.23 2. m. (a) What is the ratio of the amplitude of the ohmic current to that of the displacement current? (b) Is the ohmic current in-phase or out-of-phase with the electric field? If out-of-phase, does the current lead or lag? By how much phase?

1. Consider a parallel-plate capacitor immersed in sea water and driven by a voltage V₁ cos (2πvt). Let v = 4.0 × 10³ Hz: at this frequency, sea water has permittivity € = = 81€0, permeability μ = μo, and resistivity p = 0.23 2. m. (a) What is the ratio of the amplitude of the ohmic current to that of the displacement current? (b) Is the ohmic current in-phase or out-of-phase with the electric field? If out-of-phase, does the current lead or lag? By how much phase?

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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1. Consider a parallel-plate capacitor immersed in sea water and driven by a voltage V cos (2évt). Let v = 4.0 × 108 Hz: at this frequency, sea water has permittivity € = 81€, permeability µ = µ。, and resistivity p = 0.23 Ω · m. (a) What is the ratio of the amplitude of the ohmic current to that of the displacement current? (b) Is the ohmic current in-phase or out-of-phase with the electric field? If out-of-phase, does the current lead or lag? By how much phase? (c) Is the displacement current in-phase or out-of-phase with the electric field? If out-of-phase, does the displacement current lead or lag? By how much phase?
Transcribed Image Text:1. Consider a parallel-plate capacitor immersed in sea water and driven by a voltage V cos (2évt). Let v = 4.0 × 108 Hz: at this frequency, sea water has permittivity € = 81€, permeability µ = µ。, and resistivity p = 0.23 Ω · m. (a) What is the ratio of the amplitude of the ohmic current to that of the displacement current? (b) Is the ohmic current in-phase or out-of-phase with the electric field? If out-of-phase, does the current lead or lag? By how much phase? (c) Is the displacement current in-phase or out-of-phase with the electric field? If out-of-phase, does the displacement current lead or lag? By how much phase?
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