Question

calculate the resistivity of wire having lenght 1m and area of cross section 1.21*10-⁶m²,if it's resistance is 0.014 ohm​

Answer 1

Answer:

I = 1.0 m

R = 23 ohm

p = 1.84 × 10-6 ohm – meter

We have

R = P. I/A

23 = 1.84 × 10-6 × 1/A

A = (1.84 × 10-6 )/23

= 0.08 × 10-6 m2

= 8 × 10-8 m2

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