A wire of length 15m made of a material of ..

Question 1 Report

A wire of length 15m made of a material of resistivity 1.8 x 10-6 $Ω$ m has a resistance of 0.27 $Ω$ . Determine the area of the wire

1.5 x 10-4m2

1.0 x 10-4m2

2.7 x 10-5m2

7.3 x 10-6m2

Answer Details

Resistivity = $\frac{Resiatance x Area}{l e n g t h}$

1.6 x 10-6 = $\frac{15 \times A r e a}{0.27}$

Area = 1.0 x 10-4m2

A wire of length 15m made of a material of resistivity 1.8 x 10-6Ω Ω m has a resistance of 0.27Ω Ω . Determine the area of the wire