Question

calculate area of cross area of area of cross section of a wire if its lengt

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