Question

7
Q.NO.04 Calculate the area of cross-
section of a wire, if its length is 1.0m,
its resistance is 32 Q and resistivity of
the material is 1.6 ~10-8 ( m.
(1 Point)​

Answer 1

*Answer*

*L=1 m p= 1.84 x 10-6 ohm m R =23 ohm We now that R pL A Now let us substitute the known values in the above expression to find the area of cross section. We get, A = 1.84 x 10-6 1 23 By simplification we get, A = 1.84×108 23 A = 8 x 10-8m2

Answer 2

Answer:

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