The intrinsic impedance of copper at high frequencies is(a) Purely resistive(b) Purely inductive(c) Complex with a capacitive component(d) Complex with a inductive componentThis question was posed to me in final exam.I'd like to ask this question from Advanced and Tricky Questions topic in chapter Advanced and Tricky Questions of Electromagnetic Theory

The intrinsic impedance of copper at high frequencies is(a) Purely res

1.	The intrinsic impedance of copper at high frequencies is(a) Purely resistive(b) Purely inductive(c) Complex with a capacitive component(d) Complex with a inductive componentThis question was posed to me in final exam.I'd like to ask this question from Advanced and Tricky Questions topic in chapter Advanced and Tricky Questions of Electromagnetic Theory
Answer» Correct choice is (d) COMPLEX with a inductive component The best explanation: The intrinsic IMPEDANCE is given by √(jwµ√ϭ + jw€). Since COPPER is a good conductor, ϭ << jw€, thus the intrinsic impedance will have +J component only. This refers to complex with an inductive component.

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