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Copper behaves as a

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in Electromagnetic Theory by (188k points)
Copper behaves as a

(a) Conductor always

(b) Conductor or dielectric depending on the applied electric field strength

(c) Conductor or dielectric depending on the frequency

(d) Conductor or dielectric depending on the electric current density

This question was posed to me during an online exam.

My question comes from Advanced and Tricky Questions topic in portion Advanced and Tricky Questions of Electromagnetic Theory

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The correct option is (a) Conductor always

The explanation: The loss tangent for copper is very large due to its high conductivity. This shows that the copper behaves as a conductor in all conditions.

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