A copper wire of $$cross-sectional$$ area $$2.0$$ $$mm2$$ , resistivity $$=1.7$$×$$10$$−$$8$$Ωm, carries a current of $$1$$ A. The electric field in the copper wire is

Correct option is 38.5×10−3V/m

Questions

A copper wire of cross-sectional area 2.0 mm² , resistivity $= 1 .7 \times 10^{- 8} Ωm$ , carries a current of 1 A. The electric field in the copper wire is

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detailed solution

Correct option is C

E=iρA

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A copper wire of cross-sectional area 2.0 mm2 , resistivity =1.7×10−8Ωm, carries a current of 1 A. The electric field in the copper wire is

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A copper wire of cross-sectional area 2.0 mm² , resistivity $= 1 .7 \times 10^{- 8} Ωm$ , carries a current of 1 A. The electric field in the copper wire is