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The current in a metal at any frequency is due to(a) Conduction current(b) Displacement current(c) Both conduction and displacement current(d) Neither conduction nor displacement currentThe question was asked in my homework.I would like to ask this question from Conductors topic in section Electric Fields in Material Space of Electromagnetic Theory

Answer»

The correct option is (a) Conduction current

Explanation: At any frequency, the current through the METAL will be DUE to conduction current. Only at HIGH frequencies and when medium is air, the conduction is due to displacement current. Thus in GENERAL the current in metal is due to conduction current, which depends on the mobility of the carriers.



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