Physics, 04.07.2020 17:01 babyash12718

A narrow copper wire of length L and radius b is attached to a wide copper wire of length L and radius 2b, forming one long wire of length 2L. This long wire is attached to a battery, and a current is flowing through it. If the electric field in the narrow wire is E, the electric field in the wide wire is

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A narrow copper wire of length L and radius b is attached to a wide copper wire of length L and radi...