Question

Two copper wires of length l and 2l have radii r and 2r respectively. The ratio of their specific resistances is (a) 1 : 2 (b) 2 : 1
(c) 1 : 1 (d) 1 : 3.

Answer 1

Hey mate....

here's the answer....

Two copper wires of length l and 2l have radii r and 2r respectively. The ratio of their specific resistances is (a) 1 : 2 (b) 2 : 1

(c) 1 : 1 (d) 1 : 3.

$\huge{Option \: A}$

Hope this helps❤