You have two copper cables of equal length for carrying cur…

Physics Alternating Current Mix MCQ (Single Correct)

You have two copper cables of equal length for carrying current. One of them has a single wire of area of cross-section A, the other has ten wires of cross-section each. Judge their suitability for transporting AC and DC-

Only single strand for DC and only multiple strand for AC

Either for DC, only multiple strands for AC

Only single strand for AC, either for DC

Only single strand for DC, either for AC

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For transporting . , both the wires are equally suitable, but for transporting ....., we prefer wire of multiple strands is transmitted more by the surface of the conductor. This is called skin effect. Due to this reason that several strands of thin insulated wire, instead of a single thick wire, need be used.

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