Question

2. Two wires of same material and cross -- sectlon are of lengths Land 2L
respectively. What is the ratio of thelir resistivity?​

Answer 1

can i have brailist please?

As R=pl

          A

R x 1

      A

R1 = 11 x A2

R2   A1    12

R1 = L  x  A  = 1:8

R2   4A   2L

{1/1=L}

{1/2=2L}

{A1=4A}

{A2=A}

hope its help's