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Physics, 07.03.2020 05:31 Bearboy1564

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:

a. E
b. 2E
c. 4E
d. E/2
e. E/4

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Answers: 2

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