A uniform plane wave is traveling in seawater. Assume that the x-y plane resides just below the sea surface and the wave travels in the +z direction into the water. The constitutive parameters of seawater are &r = 80, µ₁ = 1, and o = 4 S/m. If the magnetic field at z = O is H(0,t) = y^ 100 cos(2π × 10³t) A/m (a) obtain expressions for E(z, t) and H(z, t), and (b) determine the depth at which the magnitude of E is 1% of its value at z = 0.

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A uniform plane wave is traveling in seawater. Assume that the x-y plane
resides just below the sea surface and the wave travels in the +z direction into the water. The
constitutive parameters of seawater are &r = 80, μµ₁ = 1, and o = 4 S/m. If the magnetic field at z =
O is H(0,t) = y^ 100 cos(2π × 10³t ) A/m
(a) obtain expressions for E(z, t) and H(z, t), and
(b) determine the depth at which the magnitude of E is 1% of its value at z = 0.
Transcribed Image Text:A uniform plane wave is traveling in seawater. Assume that the x-y plane resides just below the sea surface and the wave travels in the +z direction into the water. The constitutive parameters of seawater are &r = 80, μµ₁ = 1, and o = 4 S/m. If the magnetic field at z = O is H(0,t) = y^ 100 cos(2π × 10³t ) A/m (a) obtain expressions for E(z, t) and H(z, t), and (b) determine the depth at which the magnitude of E is 1% of its value at z = 0.
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