Q.

A conducting wire of cross section  0.1  mm2 carries a current of 5 A produced by an electric field at 100 V/m. The resistitivity of the material is

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a

2×103Ω  m

b

2×106Ωm

c

20×103Ω  m

d

2×103Ω  cm

answer is D.

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A conducting wire of cross section  0.1  mm2 carries a current of 5 A produced by an electric field at 100 V/m. The resistitivity of the material is