Question

calculate the area of cross section of a wire if its length is 1.0 m, its resistance is 23 ohm and the resistivity of the material of the wire is 1.84 ×10^ -6 ohm meter.

Answer 1

Answer:

8 x 10^ -8 m²

Explanation:

resistance = resistivity x length of conductor/ area of cross section

23 = 1.84 ×10^ -6 × 1 / area of cross section

area of cross section= 1.84 ×10^ -6 /23

area of cross section= 8 x 10^ -8 m²

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