The amplitude of electric field intensity on the surface of a good conductor is E0. The amplitude of the field at a depth equal to skin depth is Select one:a. 0.18E0b. 0.36E0c. zerod. 0.72E0
Question
The amplitude of electric field intensity on the surface of a good conductor is E0. The amplitude of the field at a depth equal to skin depth is Select one:a. 0.18E0b. 0.36E0c. zerod. 0.72E0
Solution
To find the amplitude of the electric field intensity at a depth equal to the skin depth, we need to use the relationship between the amplitude of the field on the surface of a good conductor and the skin depth.
The skin depth, denoted by δ, is a characteristic length that represents the depth at which the amplitude of the electric field intensity decreases to 1/e (approximately 0.368) of its value on the surface of the conductor.
Given that the amplitude of the electric field intensity on the surface of the conductor is E0, we can say that at a depth equal to the skin depth, the amplitude of the field will be 0.368E0.
Therefore, the correct answer is option b. 0.36E0.
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